At UC San Diego, researchers are using patient-derived brain organoids and spaceflight to explore whether aging-associated biology can be accelerated in orbit. With advanced proteomics enabled by the Thermo Scientific Orbitrap Astral Mass Spectrometer (MS), the team is gaining deeper insight into complex brain biology and new possibilities for studying neurodegenerative disease.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Neuroscience_Takes_Flight_How_Collaboration_Spaceflight_and_Orbitrap_Astral_MS_Are_Opening_a_New_Window_into_Brain_Aging_6b56e04145.webp" alt="Thermo Fisher Scientific: Neuroscience Takes Flight: How Collaboration, Spaceflight, and Orbitrap Astral MS Are Opening a New Window into Brain Aging" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Neuroscience_Takes_Flight_How_Collaboration_Spaceflight_and_Orbitrap_Astral_MS_Are_Opening_a_New_Window_into_Brain_Aging_6b56e04145.webp 245w," sizes="100vw" width="1024" height="512"><h3>Introduction</h3>Neurodegenerative diseases remain among the most difficult conditions to study. Researchers cannot easily or safely biopsy living brain tissue, and even sophisticated disease models can take years to reveal meaningful biological change. At UC San Diego, Drs. Aline Martins and Alysson Muotri are taking a different approach: creating patient-derived brain organoids from skin cells and sending them to space to explore whether low Earth orbit can accelerate aging-associated biology. Preliminary data suggest that 30 days in space may compress roughly 10 years of aging biology into a much shorter experimental window, opening the door to a faster path for understanding neurodegeneration and evaluating new therapeutic ideas.<h3>A study design built around biology</h3>The real power of this work begins with the study design. Rather than relying on generalized models, the researchers begin with skin cells from patients and generate 3D mini-brain organoids that can model diseases such as Alzheimer’s while preserving critical patient context. That gives the team a more human-relevant system for studying how aging and disease unfold over time. Spaceflight adds a second dimension: a research environment that is exceptionally difficult to reproduce on Earth, but one that may help reveal the molecular and cellular drivers of neurodegeneration faster than conventional studies allow. The Integrated Space Stem Cell Orbital Research (ISSCOR) Center at UC San Diego have begun to explore this broader approach to study how space-related stressors influence brain aging and cognitive decline, with potential relevance to diseases such as Alzheimer’s and dementia. Once those organoids return to Earth, the next challenge is extracting as much insight as possible from every sample.<h3>Enabling deeper insight from limited samples</h3>Brain organoids are inherently heterogeneous, with multiple cell subtypes that may respond differently to aging and environmental stress.To extract deeper biological insight from the organoid samples, the researchers describe the<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/836"> Orbitrap Astral MS </a>as central to their investigation. They highlight that the high sensitivity required for single-cell proteomics is essential for revealing how the space environment affects distinct cell populations and the Orbitrap Astral MS helps unlock deeper biological insight.That distinction is important: the value of the Orbitrap Astral MS analytical workflow is not simply generating more data but importantly helping the team resolve more of the biology within a complex model.<h3>How Orbitrap Astral MS helps push biology further</h3>At Thermo Fisher Scientific, we work alongside researchers pursuing bold scientific questions by developing technologies that help them see deeper into complex biology.Aline describes Orbitrap Astral MS as a major advance for the sensitivity and resolution this research requires. Its synchronized data acquisition capabilities and parallel ion processing across dual high-resolution accurate-mass analyzers with maximized instrument utilization help deliver deeper coverage, higher sensitivity, faster throughput, and accurate, precise quantitation across demanding biological workflows.For studies like this one, those capabilities help researchers get more from limited sample material, uncover subtle disease-relevant changes, and translate an inventive experimental design into deeper biological insight, faster.<h3>Looking ahead</h3>The power of this research lies in the convergence of ideas. Patient-derived brain organoids offer a human-relevant model of disease. Spaceflight may serve as an aging accelerator. Advanced proteomics helps researchers understand what complex biological models are revealing with greater depth and clarity, while single-cell proteomics unlocks a view into cell-specific changes that can drive disease biology. Together, this approach could give scientists a faster and more informative way to study late-onset diseases such as Alzheimer’s and dementia. This initiative between UC San Diego and Thermo Fisher Scientific shows how collaborations across the scientific community can open new doors in neuroscience and accelerate discovery in ways that matter. As researchers continue to push the boundaries of what is possible, studies like this one point to a future where deeper biological insight can be reached faster and with greater potential to improve human health.<h3>Learn more</h3><ul><li>Listen to the <a target="_blank" rel="noopener noreferrer" href="https://corporate.thermofisher.com/us/en/index/newsroom/Our-stories/Brains-in-space.html">interview with Dr. Aline Martins</a> for more on the scientific vision behind this research and its implications for brain aging and neurodegenerative disease.</li><li>Learn more about <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/content/lifetech/global/en/home/industrial/mass-spectrometry/proteomics-mass-spectrometry/single-cell-proteomics.html">Thermo Fisher Scientific single-cell proteomics solutions</a> and how they help researchers gain deeper insight from limited and complex samples.</li><li>Explore the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/836">Thermo Scientific Orbitrap Astral MS</a> and see how it helps researchers achieve deeper biological insight with faster throughput, higher sensitivity, and accurate, precise quantitation across advanced workflows.</li></ul><blockquote>Visit us on&nbsp;<a target="_blank" rel="noopener noreferrer" href="https://www.linkedin.com/showcase/72003132/admin/dashboard/">LinkedIn:</a>&nbsp;#BrainOrganoids #SpaceBiology #Neurodegeneration #OrbitrapAstralMS</blockquote>

Neuroscience Takes Flight: How Collaboration, Spaceflight, and Orbitrap Astral MS Are Opening a New Window into Brain Aging

Our Library never stops expanding. What are the most recent contributions to LabRulezLCMS Library in the week of 29th September 2026? Check out new documents from the field of liquid phase, especially HPLC and LC/MS techniques!<blockquote>👉 <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library">SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT LCMS AND RELATED TECHNIQUES</a></blockquote><blockquote>👉 Need info about different analytical techniques? Peek into <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library">LabRulezGCMS</a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library">LabRulezICPMS</a> libraries.</blockquote>This week we bring you technical note by KNAUER, application note by Shimadzu and posters by Thermo Fisher Scientific / HPLC Symposium and Waters Corporation / AOAC!<h3>1. KNAUER: Efficient separation of di(2-ethylhexyl) phthalate (DEHP) from oil matrices using GPC</h3><ul><li>Technical note</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/VTN_00_XX_knauer_applichrom_gpc_f1d7f1a236.pdf">Full PDF for download</a></li></ul>Phthalates are chemical compounds primarily used as plasticizers in polymers to enhance the flexibility and elasticity of materials such as polyvinyl chloride (PVC) [1]. Since plasticizers are not covalently bound to the polymer chains, they have the potential to leach into the contacting media and contribute to contamination [2]. With the widespread and increasing use of plastic materials, the risk of phthalate release and human exposure continues to rise. As a result, and due to their potentially harmful effects on human health, phthalates have attracted growing scientific and regulatory attention in recent years [1]. Oil-rich food products can leach lipophilic phthalates from their packaging [3]. Throughout the production and packaging process, polymeric components such as tubing, containers, and caps may serve as potential sources of contamination. For the analysis of phthalates in such oil matrices, sample cleanup is an essential step. Gel permeation chromatography (GPC), based on sizeexclusion principles, is widely applied as an effective cleanup technique prior to subsequent analytical determination.<h4>MATERIALS &amp; METHODS</h4>The samples were dissolved in the eluent mixture and filtered through a 0.45 µm PTFE filter prior to analysis. For both olive oil and canola oil, an additional sample spiked with DEHP was prepared and likewise filtered before analysis. Chromatographic analysis was performed using an isocratic method with an eluent composition of ethyl acetate/heptane (50:50 v/v) at a flow rate of 1.0 mL/min. Detection was carried out by UV absorbance at 254 nm. The injection volume was 8 µL using a full-loop injection mode. The column temperature was maintained at 25°C. Separation was achieved on an AppliChrom® OleoSep column (10 µm, 300 × 8 mm). The <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1630">AZURA® Semi Preparative GPC System</a> was used.<h4>CONCLUSION</h4>GPC sample preparation is an effective approach for separating phthalates from high-molecular-weight matrices such as edible oils. In this study, the successful separation of di(2-ethylhexyl) phthalate (DEHP) from three different oil samples was demonstrated. Based on these results, it can be assumed that other phthalates with lower molecular weights (&lt; 390 Da) can also be effectively separated under same conditions. The KNAUER AZURA® GPC semi preparative system (Fig. 4) in combination with the AppliChrom® OleoSep GPC column provides a robust and efficient setup for sample preparation in phthalate analysis, offering rapid separation, high resolution, and minimal solvent consumption due to the short analysis time.<h3>2. Shimadzu: Analysis of Chloride and Sulfate Ions in Bioethanol Using the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/lcms/library?mainauthorItems=1&amp;search=Nexera+IC">Nexera IC Ion Chromatograph</a></h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/an_01_01211_en_55cbf3e64f.pdf">Full PDF for download</a></li></ul><h5>User Benefits</h5><ul><li>Analysis of chloride and sulfate ions in fuel ethanol can be conducted in accordance with ASTM D7319-221) .</li><li>Accurate quantitative determination, exhibiting excellent linearity and repeatability, can be achieved at concentration levels significantly below the limits specified by the ASTM criteria.</li></ul>First-generation bioethanol produced from raw materials such as corn and sugarcane has been utilized to achieve carbon neutrality. However, research and development for second-generation bioethanol produced from non-food, cellulose-based raw materials is also underway to avoid competition with food crops. In Japan, eight companies, including Toyota Motor Corporation, have formed the “Research Association of Biomass Innovation for Next Generation Automobile Fuels” (raBit) to advance research on next-generation bioethanol technologies. Shimadzu participates as a supporting member and promotes research and development through analytical technology cooperation.&nbsp;It is known that the presence of chloride and sulfate ions in fuel ethanol can form engine residue, leading to reduced engine performance. ASTM D4806-252) specifies fuel ethanol quality as criterion of chloride ion must not exceed 6.7 mg/kg and that of sulfate ion must not exceed 4 mg/kg. ASTM D7319-22 includes test methods for chloride and sulfate ions in fuel ethanol using ion chromatography.&nbsp;In this application, we present an example of the analysis of chloride and sulfate ions in bioethanol using the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/lcms/library?mainauthorItems=1&amp;search=Nexera+IC">Nexera IC</a> in accordance with ASTM D7319-22.<h4>Conclusion</h4>Chloride and sulfate ions in bioethanol were determined using a Nexera IC system in accordance with ASTM D7319-22. The method offers high sensitivity, linearity, and repeatability, enabling reliable quantification at concentrations well below ASTM-specified limits, thus supporting effective quality control and regulatory compliance of fuel ethanol.<h3>3. Thermo Fisher Scientific / HPLC Symposium: LC-MS analysis of intact and subunit-level mAb enabled by a novel monodisperse supermacroporous reversed-phase platform</h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/po_004763_ccs_surepac_protein_reverse_phase_mabs_separation_po004763_na_en_56199ec50d.pdf">Full PDF for download</a></li></ul>Monoclonal antibodies (mAbs) are structurally complex biotherapeutics that require multi-level analytical characterization to ensure product quality, safety, and efficacy. LC-MS analysis is routinely applied at the intact protein and subunit levels to assess molecular mass, heterogeneity, and structural integrity. Enzymatic subunit generation, such as IdeS digestion, enables targeted domain-level characterization while reducing analytical complexity compared to full peptide mapping. Achieving high-performance reversed-phase separations across intact and subunit-level workflows remains challenging, as chromatographic columns optimized for intact proteins often compromise performance of smaller subunits. Consequently, multiple columns are required to support comprehensive mAb characterization.&nbsp;In this study, we evaluate a reversed-phase separation column based on a novel 2.5 μm monodisperse supermacroporous (SMP) polymeric stationary phase for unified LC-MS analysis of monoclonal antibodies under intact, reduced, and IdeSdigested conditions. The SMP resin’s uniform particle size and highly accessible pore structure enable efficient separation of both small and large analytes, including intact mAbs, reduced subunits (LC and HC), and IdeS-generated fragments such as scFc and F(ab′)₂. Using the SurePac Protein RP MDi column, baseline separation of these species was achieved within a 10- minute gradient, providing a fast, all-in-one LC-MS approach for mAb variant characterization.<h4>Materials and methods</h4><h5>Instruments&nbsp;</h5><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/744">Thermo Scientific Vanquish Horizon UHPLC system</a>; <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/401">Thermo Scientific Orbitrap Exploris 480 mass spectrometer</a> with Thermo Scientific OptaMax NG ion source.&nbsp;<h5>Data analysis&nbsp;</h5>The UHPLC system with mass spectrometer were operated with <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1758">Thermo Scientific Xcalibur 4.7 software</a>. Full MS spectra of intact mAbs and mAb fragments were analyzed using Thermo Scientific Freestyle 1.8 and BioPharma Finder 5.4 software that utilizes the ReSpect and Xtract algorithms for molecular mass determination.<h4>Conclusions&nbsp;</h4><ul><li>A SurePac Protein RP column enabled a rapid (10 min) separation of mAb LC, HC, scFc, and F(ab′)₂ fragments, with major proteoforms identified by mass agreement.&nbsp;</li><li>The SurePac Protein RP column supports comprehensive intact and subunit-level mAb characterization in a single workflow, with strong separation performance across mAb fragments.</li></ul><h3>4. Waters Corporation / AOAC: IMPROVED PURIFICATION OUTCOMES FOR PROBLEMATIC COMPOUNDS USING AN INERT COLUMN WITH POLAR SORBENT</h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/pdf/720009616_AOAC_f65ea1b771.pdf">Full PDF for download</a></li></ul><div><div><section><div><div><div><div><div><div>Whether the goal is to obtain enough intermediate for the next step in a synthetic scheme, to polish a final product, or to create a suitable standard for compound identification, preparative liquid chromatography remains a primary technique for isolating compounds from complex mixtures. Recovering the target compound at the desired purity and yield in the least amount of time is of utmost importance.&nbsp;Polar targets that do not retain, or “sticky” compounds that seemingly disappear on the column are two groups that many consider to be ’problematic’ in purification. “Sticky” compounds, also known as non-specific adsorbers (NSAs), are metal-sensitive targets what can adsorb to positively charged metal surfaces in the LC system flow path and column, making them difficult to detect and collect effectively. Although other methods, such as column pre-conditioning, can be implemented for isolating compounds known to be interactive, this option can be time-consuming and lead to sample loss and excessive solvent waste.&nbsp;Although lab scale purifications in which tens to hundreds of milligrams of target compound are isolated from crude mixtures are still performed routinely, the trend toward smaller scale purification is becoming more prevalent. Laboratories are increasingly opting to isolate only a few milligrams of target compound for preliminary studies. Successful target candidates are then isolated in greater amounts to satisfy ensuing experiments. Whether the objective is to isolate a small amount of target compound for exploratory studies, or to purify greater amounts for their use as reference standards, a column which can resolve eluting impurities efficiently is required.&nbsp;Echinacea is an herbaceous flowering plant in the daisy family1,2 and is one of the most important medical herbs widely used to treat the common cold and other infectious diseases.3 One of the most abundant compounds in echinacea is chicoric acid (Figure 1), a phenylpropanoid and caffeic acid derivative.4,5 In this scale-up study, chicoric acid, a suspected “sticky” target polar compound was isolated from a complex echinacea tea extract using two inert XSelect HSS T3 MaxPeak Premier OBD Columns with different particle sizes and dimensions (3.5 μm 10 x 100 mm and 5 μm 10 x 150 mm). The MaxPeak Premier OBD preparative HPLC columns are considered ’inert’ because they are enabled with Waters High Performance Surface (HPS) Technology. The chicoric acid isolated using the 3.5 μm column was of equivalent UV purity to the product isolated using the 5 μm column, with a 34% savings in run time. Smaller particle preparative isolations using columns with inert hardware are a practical option for those laboratories where reduced amounts of target are needed for projects conducted on accelerated timelines.<h4>METHODS</h4><ul><li>Analytical Columns and flow rate: ACQUITY Premier HSS T3 and <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1952">ACQUITY UPLC HSS T3 Columns</a>; 1.8 μm, 2.1x50 mm; 0.35 mL/min&nbsp;</li><li>Prep Columns and flow rate: XSelect HSS T3 OBD Prep Column and XSelect Premier HSS T3 OBD Prep (custom) Columns, 5 μm, 10x150 mm; XSelect Premier HSS T3 OBD Prep Column, 3.5 μm, 10x100 mm; 5.4 mL/min</li></ul><h5>Instrumentation&nbsp;</h5><ul><li>Analytical: <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/198">ACQUITY UPLC H-Class System</a>; Quaternary Solvent Manager, Sample Manager FTN-H, Column Manager, TUV Detector, <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/1543">ACQUITY QDa Detector&nbsp;</a></li><li>Prep: Waters AutoPurification System; 2545 Binary Gradient Module, 2767 Sample Manager, System Fluidics Organizer, 2998 Photodiode Array Detector</li></ul><h4>CONCLUSIONS&nbsp;</h4><ul><li>Chicoric acid was analyzed and isolated using analytical and preparative MaxPeak Premier HSS T3 Columns with inert surfaces, which increased the peak area and height for improved detection and collection.&nbsp;</li><li>Chicoric acid was successfully isolated using 3.5 and 5 μm XSelect Premier HSS T3 OBD Prep Columns and fraction pool analysis showed equivalent UV purity, which suggests the viability of incorporating small particle preparative chromatography into the purification workflow.&nbsp;</li><li>3.5 μm preparative columns improve purification process efficiency and promote sustainability by reducing method run time, solvent usage, and fraction lyophilization time.&nbsp;</li><li>Inert MaxPeak Premier column hardware, OBD Technology, and small particle preparative columns are well-suited for the demands of the purification laboratory when results must be generated efficiently to satisfy accelerated production timelines</li></ul></div></div></div></div></div></div></section></div></div>

News from LabRulezLCMS Library - Week 40, 2026

Pressurized Liquid Extraction: Principle, Method, and Workflow

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Agilent Technologies

Common problems like pressure, peak shape changes, retention time shifts, and changes in detection are ones HPLC chromatographers routinely struggle with.
In this webinar we will work through troubleshooting strategies to help you with them. When a problem arises, it is important to determine if it’s more likely related to the instrument or something with the column. The answer could be either one of them, but it might also be something else like the sample or mobile phase. Looking at both the instrument and the column, we will walk through steps used to help track down the potential cause and recommend a course of action to help resolve the problem.
<blockquote>
Presenter: Mark Powell (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark Powell is an Applications Engineer located at Agilent’s Little Falls site in Wilmington, DE. Before joining Agilent in 2011, Mark worked in the pharmaceutical industry synthesizing, purifying and analyzing drug candidates. He provides applications assistance and technical support for Agilent’s HPLC columns and consumables.
</blockquote>

Agilent Technologies: From Instrument to Column: Tracking Down the Problem

From Instrument to Column: Troubleshooting in HPLC

Helping you with troubleshooting strategies in HPLC.

In most HPLC separations there is a wanted interaction of the sample with a chromatography packing.
When doing GPC/SEC separations, that is not the case. GPC/SEC is a noninteractive technique that separates samples based on their size in solution and not on their chemistry. This presentation will cover the common questions that should be asked when developing a robust and reproducible GPC/SEC method.
Topics will include:
<ul>
<li>Sample type: protein vs polymer
</li>
<li>Solvent Selection and its importance
</li>
<li>Column Choices &amp; how to choose correctly
</li>
<li>Calibrants
</li>
<li>Detector &amp; Instrument Considerations
</li>
</ul>
As we discuss each topic area we’ll look at examples and provide valuable tips that can help you achieve long term reproducible and reliable results.
<blockquote>
Presenter: Jean Lane (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Jean has been employed with Agilent since Nov 2010 in technical and applications support and has a primary role supporting Agilent’s full line of LC columns and consumables, which also includes support for Agilent’s GPC/SEC product line. She came to Agilent thru acquisition of Varian and the former Polymer Laboratories. Jean has 20 plus years of technical and applications support for both HPLC and GPC consumable products. In addition to practical chromatography experience in the laboratory, she has had many, many years in her technical role involving customer support providing assistance and troubleshooting for customer chromatography issues.
</blockquote>

Agilent Technologies: From Proteins to Polymers – GPC-SEC: Understanding Column Selection and Method Considerations for Your Sample

From Proteins to Polymers – GPC-SEC: Understanding Column Selection and Method Considerations for Your Sample

Common questions that should be asked when developing a robust and reproducible GPC/SEC method.

Understanding Column Selection and Method Considerations

When developing HPLC methods, isocratic and gradient methods offer different advantages. Knowing how to choose between the two types of methods is important for efficient method development.
In this talk we will look at how a scouting gradient can help determine whether an isocratic or gradient method is the best choice. The strengths of each will be discussed. They can help determine which to choose when conditions reasonably allow for a choice.
Lastly, we will briefly discuss how a scouting gradient can be used to optimize the conditions of an analytical gradient.
<blockquote>
Presenter: Paul Altiero (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Paul Altiero is an Applications Engineer located at the Agilent Little Falls site in Wilmington, DE. Prior to coming to Agilent in 2009, Paul worked in the pharmaceutical industry performing LCMS bioanalysis supporting Drug Discovery DMPK. While at Agilent, Paul has been a field service engineer for LCMS as well as the integrating program manager for the RapidFire high throughput LCMS system. In his current role Paul’s responsibilities include technical support and application assistance for LCMS consumables.
</blockquote>

Agilent Technologies: Isocratic vs. Gradient: Making the Call

Isocratic vs. Gradient: Making the Call

How a scouting gradient can help determine whether an isocratic or gradient method is the best choice.

HPLC Isocratic vs. Gradient: Making the Call

If you want to treat yourself to good chromatography understanding your method goals or priorities is a key part but there are other things to consider as well.
Things like:
<ul>
<li>Column choice and characteristics
</li>
<li>Method parameters like temperature
</li>
<li>Mobile phase choice
</li>
<li>Your sample and its characteristics
</li>
<li>Potential limitations of your instrument
</li>
</ul>
We’ll discuss tricks to help identify what you should look at more closely and tips to help optimize your results.
<blockquote>
Presenter: Rita Steed (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Rita Steed began supporting the LC column line for Agilent in 1999. As a Chromatography Specialist (first with Chromatography, Inc., then directly for Agilent), Rita worked on-site with researchers in Pharmaceutical and other industries presenting technical seminars and assisting researchers with troubleshooting and method development. Rita has over 20 years of Chromatography experience in the Biotechnology, Chemical, and Pharmaceutical industries. She has held positions in Research, Sales, and Technical Service. Rita has earned degrees in Microbiology and Life Sciences/Biochemistry. In her current position, she is an inside Application Engineer supporting LC columns.
</blockquote>

Agilent Technologies: Treat Yourself to Good Chromatography: Helpful Tricks

Treat Yourself to Good Chromatography: Helpful Tricks

Tricks to help identify what you should look at more closely and tips to help optimize your results.

Troubleshooting an HPLC system can be a daunting task. In this seminar we will:
<ul>
<li>Look at how to isolate the problem
</li>
<li>Discuss the most common column problems and their solutions including:
<ul>
<li>Pressure
</li>
<li>Peak Shape
</li>
<li>Retention
</li>
</ul>
</li>
</ul>
We will also look at examples where you may think it’s your column but it’s actually related to your instrument such as:
<ul>
<li>Dwell volume</li>
<li>Extra Column Volume</li>
<li>Detector Response Rate</li>
</ul>
<blockquote>
Presenter: Rita Steed (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Rita Steed began supporting the LC column line for Agilent in 1999. As a Chromatography Specialist (first with Chromatography, Inc., then directly for Agilent), Rita worked on-site with researchers in Pharmaceutical and other industries presenting technical seminars and assisting researchers with troubleshooting and method development. Rita has over 20 years of Chromatography experience in the Biotechnology, Chemical, and Pharmaceutical industries. She has held positions in Research, Sales, and Technical Service. Rita has earned degrees in Microbiology and Life Sciences/Biochemistry. In her current position, she is an inside Application Engineer supporting LC columns.
</blockquote>

Agilent Technologies: LC Column Troubleshooting – Isolating the Source of the Problem

LC Column Troubleshooting – Isolating the Source of the Problem

Isolating the Source of the Problem

With the addition of MS detection to HPLC analyses, certain considerations must be made in selecting columns and conditions.
In this seminar we will:
<ul>
<li>Discuss the fundamentals and applications of various LC/MS techniques.
</li>
<li>Look at column choices and mobile phase selection for LC separations as well as for MS sensitivity
</li>
<li>Address specific challenges to LC/MS analyses, such as interferences and ion suppression, will be addressed.
</li>
<li>The importance of sample preparation in minimizing problems with interferences will also be covered.
</li>
</ul>
<blockquote>
Presenter: Mark Powell (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark Powell is an Applications Engineer located at Agilent’s Little Falls site in Wilmington, DE. Before joining Agilent in 2011, Mark worked in the pharmaceutical industry synthesizing, purifying and analyzing drug candidates. He provides applications assistance and technical support for Agilent’s HPLC columns and consumables.
</blockquote>

Agilent Technologies: Making LC Methods MS Friendly

Making LC Methods MS Friendly

With the addition of MS detection to HPLC analyses, certain considerations must be made in selecting columns and conditions.

If you’re doing food testing and want to find ways to do more with less while getting consistent accurate results this seminar is for you.
We will walk through a sample application – multi-residue pesticides in fish using LC/MS – from sample prep to data analysis, and point out tips for saving both time and money and improving results. Key topics covered will be column selection, tips for extending column life and “just enough” sample prep solutions that reduce time spent on sample prep.
<blockquote>
Presenter: Mark Powell (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark Powell is an Applications Engineer located at Agilent’s Little Falls site in Wilmington, DE. Before joining Agilent in 2011, Mark worked in the pharmaceutical industry synthesizing, purifying and analyzing drug candidates. He provides applications assistance and technical support for Agilent’s HPLC columns and consumables.
</blockquote>

Agilent Technologies: New:Troublefree Food Testing - Technologies to Improve Uptime and Productivity

Troublefree Food Testing - Technologies to Improve Uptime and Productivity

Sample application – multi-residue pesticides in fish using LC/MS.

Technologies to Improve Uptime and Productivity

Very polar compounds have poor retention in reversed phase and can be challenging to separate.
In this talk, we will discuss changes to your reversed phase conditions that can help. We’ll also look at the benefits of choosing a more polar stationary phase.
If that doesn’t work you may need to explore other types of chromatography.
Some of those options are:
<ul>
<li>HILIC
</li>
<li>Ion Pair
</li>
<li>Normal Phase
</li>
</ul>
Advantages and disadvantages of these options will be discussed.
<blockquote>
Presenter: Mark Powell (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark Powell is an Applications Engineer located at Agilent’s Little Falls site in Wilmington, DE. Before joining Agilent in 2011, Mark worked in the pharmaceutical industry synthesizing, purifying and analyzing drug candidates. He provides applications assistance and technical support for Agilent’s HPLC columns and consumables.
</blockquote>

Agilent Technologies: Too Polar for Reversed Phase - What do you do?

Too Polar for Reversed Phase - What do you do?

Changes to your reversed phase conditions that can help.

How the chromatographic process works is not magic.
It is described by a few key parameters, such as resolution, retention factor, and selectivity. Understanding the equations that define these parameters can make them less intimidating.
In this talk we will discuss:
<ul>
<li>What they are and where they come from
</li>
<li>Their importance
</li>
<li>The effect they have on our chromatography
</li>
<li>When they don’t matter
</li>
</ul>
A better grasp of this key information helps make the separation work for us.
<blockquote>
Presenter: Bill Champion (Application Engineer, Agilent Technologies, Inc.)
</blockquote>

Agilent Technologies: Demystifying the Chromatographic Process

Demystifying the Chromatographic Process

How the chromatographic process works is not magic.

Developing reversed-phase chromatographic methods can often be both more efficient and made better by use of a systematic approach rather than a “random walk”.
Combining simple experimental design with chromatographic understanding can help us better understand how the chromatographic parameters affect the separation.
In this talk, we will discuss the use of simple experimental design to optimize our method development and how it can:
<ul>
<li>Help make the method more robust</li>
<li>Help us understand and predict chromatographic behavior</li>
<li>Make it possible to know which parameters are really important</li>
</ul>
Most of these experiments can be set up to run in a simple overnight sequence.
<blockquote>
Presenter: Bill Champion (Application Engineer, Agilent Technologies, Inc.)
</blockquote>

Agilent Technologies: Systematic Approach vs. Random Walk - Improving the Efficiency of Method Development and Optimization