Post-translational modifications (PTMs) are where so much of biology’s complexity lives, but they are also some of the hardest molecular features to analyze with confidence. Phosphorylation, asymmetric dimethylarginine (ADMA), and O-GlcNAcylation (O-GlcNAc) often occur at low abundance, can be highly labile, and frequently require precise site localization to understand their biological meaning. This<a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/tn_004377_ov_phosphorylation_ptm_etd_excedion_pro_tn004377_na_en_71f681655f.pdf"> technical note </a>shows how the <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1958">Thermo Scientific Orbitrap Excedion Pro Hybrid Mass Spectrometer</a> helps address those challenges by combining fast, sensitive performance with complementary <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/article/7217">HCD and EThcD fragmentation</a> workflows.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_Phosphorylation_ADMA_and_O_Glc_N_Ac_Analysis_on_the_Orbitrap_Excedion_Pro_Mass_Spectrometer_d24a5de98e.jpg" alt="Thermo Fisher Scientific: Phosphorylation, ADMA, and O-GlcNAc Analysis on the Orbitrap Excedion Pro Mass Spectrometer" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_Phosphorylation_ADMA_and_O_Glc_N_Ac_Analysis_on_the_Orbitrap_Excedion_Pro_Mass_Spectrometer_d24a5de98e.jpg 245w," sizes="100vw" width="1024" height="512">Using enriched PTM samples and automated data-dependent acquisition, the study demonstrates that the Orbitrap Excedion Pro MS can deliver both depth and confidence across multiple PTM classes. For phosphorylation analysis, the platform identified 5,892 unique phosphosites from IMAC-enriched samples and 2,941 unique phosphotyrosine sites after phosphotyrosine enrichment, highlighting strong performance for both broad and highly targeted signaling studies. Just as importantly, the data show that HCD and EThcD provide complementary value, with each fragmentation method contributing unique site identifications and helping resolve ambiguous assignments.The note also highlights the value of EThcD for more analytically demanding PTMs. In ADMA-enriched samples, EThcD delivered more ADMA peptide-spectrum matches and more unique modified peptides than HCD, supporting improved confidence in site characterization. For O-glycopeptides, the Orbitrap Excedion Pro MS uses an intelligent HCD-product-dependent-EThcD strategy that triggers EThcD only when oxonium ions are detected, improving productivity while preserving the fragmentation detail needed for confident glycosite localization.Overall, this technical note shows how Orbitrap Excedion Pro MS enables researchers to go deeper into PTM biology with greater sensitivity, better site confidence, and smarter acquisition. For scientists studying signaling, regulation, and disease mechanisms, it presents a powerful approach for expanding PTM coverage without compromising analytical rigor.<blockquote><h5><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/tn_004377_ov_phosphorylation_ptm_etd_excedion_pro_tn004377_na_en_71f681655f.pdf">Download the technical note "Advancing phosphorylation, ADMA, and O-GlcNAc PTM analysis with HCD and EThcD on the Orbitrap Excedion Pro mass spectrometer"</a></h5></blockquote>Visit us on&nbsp;<a target="_blank" rel="noopener noreferrer" href="https://www.linkedin.com/showcase/72003132/admin/dashboard/">LinkedIn:</a>&nbsp;#PTM #OrbitrapExcedionPro #glycosylation #phosphorylation

Phosphorylation, ADMA, and O-GlcNAc Analysis on the Orbitrap Excedion Pro Mass Spectrometer

The countdown is almost over. In just one week, the international chromatography community will meet in Prague for the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/events/644">35th International Symposium on Chromatography (ISC 2026)</a>, taking place from September 6–10, 2026. Whether your registration has been confirmed for months or you are still deciding whether to join, now is the time to finalize your plans. Here is what you need to know before ISC 2026 begins.<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/companies/314">ISC</a> is the oldest conference series dedicated to separation science, with symposia organized since 1956. This September, the Prague Congress Centre will welcome researchers, industry experts, instrument manufacturers, young scientists, and other specialists for five days of chromatography and separation science, covering everything from fundamental research to pharmaceutical, environmental, food, health, and omics applications.But before the scientific sessions begin, there are a few practical details worth checking.<h4>ISC officially starts on September 6 – but activities begin a day earlier</h4>The official dates for ISC 2026 are Sunday, September 6 through Thursday, September 10, but for some participants the conference starts already on Saturday, September 5.The first Short Courses are scheduled for Saturday (<a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/6770">SC 1 – Modern HPLC Separation in Theory and Practice</a> and <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7312">SC 2 – mzmine for LC-MS data analysis</a>), with additional courses continuing on Sunday morning and afternoon. If you have registered for a Short Course, make sure to check its exact date and starting time before arranging your journey to Prague.Sunday then marks the official opening of ISC 2026, with the Opening Ceremony, Award Ceremony, <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7361">plenary lectures</a>, and Welcome Reception introducing delegates to the week ahead.<h4>Haven’t registered yet? You can still join ISC 2026</h4>Missed the late-registration deadline? It is still possible to attend.Onsite registration has been available since August 26, 2026, giving last-minute participants another opportunity to join the symposium. Current onsite registration fees are:<ul><li>Industry: €1,150</li><li>Academic: €890</li><li>Student: €390</li><li>Short Courses: €270</li></ul>The Short Course fee covers participation in up to three Short Courses.One practical point for last-minute registration: bank-transfer payments closed on August 19, so only card payments are now accepted.Full registration includes access to oral and poster sessions, the exhibition, the Sunday Welcome Reception, scheduled lunches and coffee breaks, the electronic Book of Abstracts, and a Prague public transportation pass.<h4>Where is ISC 2026 and how do you get there?</h4>ISC 2026 will take place at the:Prague Congress Centre<ul><li>5. května 65</li><li>140 21 Prague 4</li><li>Czech Republic</li></ul>The venue is particularly easy to reach by public transport. It is located directly on Prague’s Metro Line C at Vyšehrad station, just around five minutes by metro from Muzeum station in the city centre.The Prague Congress Centre brings the lecture halls, exhibition spaces, meeting rooms, and other conference facilities together in one venue, making it easy to move between scientific sessions, posters, industry activities, and the exhibition throughout the day.And since full conference registration includes public transportation in Prague, getting around the city during ISC should be straightforward.<h4>When can you pick up your conference materials?</h4>The registration desk will already be open during the Short Courses and will remain available throughout the symposium.Registration opening hours:<ul><li>Saturday, September 5: 8:30–17:00</li><li>Sunday, September 6: 7:30–19:00</li><li>Monday, September 7: 7:30–18:00</li><li>Tuesday, September 8: 7:30–19:00</li><li>Wednesday, September 9: 8:00–18:00</li><li>Thursday, September 10: 8:30–14:30</li></ul>If you are arriving in Prague on Sunday, allowing some extra time for registration before the Opening Ceremony will make the start of the conference considerably more relaxed.<h4>Now is the time to build your personal ISC program</h4>With several parallel sessions running throughout the week, trying to decide where to go only after arriving at the venue may mean missing something important.The <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7477">main scientific program</a> is organized around three broad areas:<ul><li>Fundamentals</li><li>Bioanalysis and omics applications</li><li>Hyphenated techniques</li></ul>These are complemented by <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7280">Tutorials </a>+ Young Speakers, plenary and invited lectures, poster sessions, the international exhibition, vendor seminars, and industry-focused activities.Before leaving for Prague, take another look at the Interactive Program and mark the lectures, posters, and other activities that are most relevant to you. If you are presenting your own work, this is also the right time to double-check your assigned session, room, and presentation time.And don’t focus only on the oral program. Poster sessions and exhibition breaks are among the best opportunities to discuss new research directly with authors, meet instrument and technology specialists, and make new contacts.<h4>Don’t overlook the vendor seminars and industry program</h4>ISC 2026 is not limited to academic presentations. The conference also includes an extensive industry component, with activities covering current challenges in separation science and practical applications of new analytical technologies.During the lunchtime sessions, participants can attend <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7736">vendor seminars</a> presented by companies including Avantor, Shimadzu, Advanced Materials Technology, Restek, and Thermo Fisher Scientific. Topics range from stationary-phase selectivity and chromatographic modelling to HPLC and LC-MS column technologies and advanced characterization of biotherapeutics.The conference also includes dedicated <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7777">Industry Activities</a> from Monday through Wednesday, bringing together academic and industrial perspectives on topics relevant to analytical laboratories and the future of separation science. One of the discussions, for example, will examine how education in separation science can better reflect the skills required by modern industry, while another will focus on sustainability and the practical implementation of greener analytical workflows.On Wednesday, participants can also join the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/article/7801">Publishing Workshop</a>, another activity worth adding to the schedule if scientific publishing is part of your work.<h4>Test your chromatography knowledge at the ISC Quiz</h4>Not every session needs to be completely serious.On Tuesday, September 8 from 18:30 to 19:30, ISC will host an interactive Chromatography Quiz, combining practical questions, chromatography fundamentals, unusual facts, and lighter challenges.There is no advance registration required. Any registered conference participant can join, but remember to bring a smartphone—the quiz uses live participation through a QR code.Results will be scored in real time, and prizes will be awarded to the top three participants.<h4>Start networking from the first evening</h4>The scientific program may be the main reason to attend ISC, but the conversations between sessions can be equally valuable.The first major networking opportunity comes immediately on Sunday.The Welcome Reception will take place on September 6 from 18:30 to 20:00 in the second-floor foyer of the Prague Congress Centre. It is open to registered participants and accompanying persons and includes a light buffet and drinks.As it takes place immediately after the opening program, it is an ideal opportunity to reconnect with colleagues, meet new contacts, and start conversations before the full parallel scientific program begins on Monday.Another social highlight will be the Gala Dinner on Wednesday, September 9 from 19:00 to midnight at the National House Vinohrady.The Gala Dinner requires a separate €100 ticket, is not included in the standard registration fee, and has a smart-casual dress code. Participants should also note that transportation to and from the venue is not organized by the conference.<h4>And perhaps leave a little time for Prague</h4>A conference schedule can fill up quickly, but ISC 2026 is taking place in one of Europe’s most walkable cities.If you find some free time between sessions, Vyšehrad is only about a 10-minute walk from the Prague Congress Centre and offers panoramic views across Prague and the Vltava River. It is an easy option for a short walk without travelling back into the historic city centre.See you at ISC 2026 in Prague!

ISC 2026 Starts in One Week: What You Need to Know

In the week of August 31, the following webinars await you in the field of liquid phase and especially HPLC and LC/MS.<blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinars">👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</a></h4>👉 Search and filter in the largest global database with over 5 500 GC, LC, MS and spectroscopy webinars.</blockquote><h5>1. Technology Networks: Modern Methods for Faster Microbial Analysis</h5><ul><li>Tu, 1.9.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6454">Registration</a></li></ul>Struggling to choose the right technique for microbial testing? Learn how MALDI-TOF, FTIR, and automated DNA/RNA electrophoresis accelerate identification.<h5>2. Phenomenex: Addressing LC Method Optimization - Scaling For Efficiency, Throughput And Reproducibility</h5><ul><li>We, 2.9.2026 10:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6458">Registration</a></li></ul>Join this webinar on LC method optimization and scaling. Learn how column dimensions, particle morphology, and sample loading strategies maximize throughput and reproducibility.<h5>3. Thermo Fisher Scientific: Proteoform Studio software, top down made simple</h5><ul><li>We, 2.9.2026 14:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6459">Registration</a></li></ul>Learn how Thermo Scientific Proteoform Studio software simplifies top-down MS and intact protein analysis through integrated workflows, interactive deconvolution, and reporting.<h5>4. Agilent Technologies: Targeted Hybridization Capture for Antimicrobial Resistance Surveillance in Complex Environmental Samples</h5><ul><li>We, 2.9.2026 15:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6455">Registration</a></li></ul>Discover how Agilent SureSelect hybrid capture enhances antimicrobial resistance gene detection and characterization in complex environmental samples compared with shotgun NGS.<h5>5. Thermo Fisher Scientific: Ask the Expert: What to expect from the new Thermo Scientific™ Orbitrap™ Excedion™ Hybrid mass spectrometers</h5><ul><li>Th, 3.9.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6466">Registration</a></li></ul>Discover the new Orbitrap Excedion Hybrid Mass Spectrometer and learn how enhanced dynamic range, robust performance, and an upgradeable design support advanced HRAM workflows.<h5>6. Waters Corporation: Informatics series #34 Ready for Self-Documenting Chromatography?</h5><ul><li>Th, 3.9.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6426">Registration</a></li></ul>Speed up root cause analysis with self-documenting LC and Empower software in this 30-minute Waters coffee break.<h5>7. SciY/Mestrelab Research: From Legacy Workflows to Paperless Labs: Track Every Sample, Process, and Decision</h5><ul><li>Th, 3.9.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6425">Registration</a></li></ul>Transform your lab from paper to digital. Learn how WebLab and LIMS workflows automate sample tracking and support laboratory compliance.<h5>8. SelectScience: ADC characterization in one native LC-MS workflow</h5><ul><li>Fr, 4.9.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6460">Registration</a></li></ul>Simplify ADC characterization with native RP-LC-MS using Biozen® columns to determine DAR, proteoforms, and positional isomers without buffer exchange.

Webinars LabRulezLCMS Week 36/2026

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The International Symposium on Chromatography (ISC) represents the oldest conference series focussing on separation science. ISC symposia have been organised since 1956 in each even year. ISC is internationally recognised as one of the premier meeting series for discussion of all modes of chromatography and separation science with a broad coverage of techniques and applications.

International Symposium on Chromatography - (ISC)

KNAUER Eurospher II 100 DNPH (U)HPLC Columns (USP L1)

Silica gel based columns with C18 modification with special endcapping, designed for DNPH analysis.

DNPH columns for polar reversed phase applications with 100 % aqueous mobile phase (USP L1)C18 stationary phase for the analysis of more polar and hydrophilic compounds in reversed phase mode (USP L1). Silica gel based columns with C18 modification with special endcapping, designed for DNPH analysis. Because of their modification, DNPH phases can be operated under 100 % aqueous conditions without destroying the stationary phase, what is not recommended for classical C18 phases caused by their hydrophobicity.These phases are ideal for the analysis of:<ul><li>DNPH-derivates of aldehydes and ketones</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_DNPH_7020417932.webp" alt="KNAUER: DNPH" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_DNPH_7020417932.webp 245w," sizes="100vw" width="690" height="428"><h3>KNAUER (U)HPLC Columns</h3>Widest range of HPLC and UHPLC columns for all separation modes and applications.<ul><li>Safe Investment: Robust and reliable columns for attractive price&nbsp;</li><li>Separation Mode: Reversed Phase, HILIC, Normale</li><li>Simplicity: Easy purchase via our online store with fast delivery</li><li>Application: All-rounder for research or highly specialised for high-throughput analysis? We have the best column for your requirements.</li><li>Flexibility: Wide selection of column and particle sizes, for (U)HPLC applications up to 1000 bar</li></ul>KNAUER offers the perfect column for any small molecule separation. No matter which separation mode, molecule and the mobile phase, we offer a suitable (U)HPLC stationary phase. Choose from a wide range of modifications, particle sizes and column dimensions to suit your application. To elongate the lifetime of your column, you can choose to use a suitable precolumn.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_KNAUER_U_HPLC_C8_and_C8_A_Columns_083c60f401.webp" alt="KNAUER: KNAUER (U)HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_KNAUER_U_HPLC_C8_and_C8_A_Columns_083c60f401.webp 182w," sizes="100vw" width="787" height="674">

KNAUER Eurospher II 100 DNPH Prep HPLC Columns (USP L1)

DNPH columns for polar reversed phase applications with 100 % aqueous mobile phase (USP L1)C18 stationary phase for the analysis of more polar and hydrophilic compounds in reversed phase mode (USP L1). Silica gel based columns with C18 modification with special endcapping, designed for DNPH analysis. Because of their modification, DNPH phases can be operated under 100 % aqueous conditions without destroying the stationary phase, what is not recommended for classical C18 phases caused by their hydrophobicity.These phases are ideal for the analysis of:<ul><li>DNPH-derivates of aldehydes and ketones</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_DNPH_7020417932.webp" alt="KNAUER: DNPH" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_DNPH_7020417932.webp 245w," sizes="100vw" width="690" height="428"><h3>KNAUER Preparative HPLC Columns</h3>The right choice for all dimensions from semi-prep to batch chromatography to SMB.<ul><li>Modifications: Reversed Phase, HILIC, Normale Phase</li><li>Max. Pressure: 400–600 bar</li><li>Column Inner Diameter (ID): 16–50 mm in our shop, more on request</li><li>Column Brands: Eurospher, Eurospher II</li><li>Safe Investment: Robustness and durability based on superior technology</li><li>Application: Easy upscaling, as all materials are available from ultra high performance to preparative scale HPLC. You can also use our upscaling calculator.</li><li>Customizable: Standard flanged hardware &amp; dAX hardware with static or dynamic axial compression available</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/KNAUER_Preparative_HPLC_Columns_31bc2477c3.webp" alt="KNAUER: KNAUER Preparative HPLC Columns" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_KNAUER_Preparative_HPLC_Columns_31bc2477c3.webp 221w," sizes="100vw" width="1024" height="724"><h5>Preparative HPLC columns can be offered with two different hardware types:</h5><ul><li>Versatile standard flanged hardware for nearly any application task in batch chromatography</li><li>dAX Hardware with static and dynamic axial compression for an extended lifetime and multi-column chromatography like SMB processes</li></ul>

Products from category DNPH HPLC columns - page 1

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Phosphorylation, ADMA, and O-GlcNAc Analysis on the Orbitrap Excedion Pro Mass Spectrometer

ISC 2026 Starts in One Week: What You Need to Know

Webinars LabRulezLCMS Week 36/2026