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

<h4>Latest edition of the Wiley Registry/NIST Mass Spectral Library for leading pharmaceutical, environmental, and forensic laboratories worldwide expands coverage to more than 1.2 million spectra</h4>Wiley, a global leader in authoritative content and research intelligence, today released the new edition of the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/2591">Wiley Registry/NIST Mass Spectral Library</a>, a reference database that combines two essential mass spectrometry references in a single, integrated collection, giving scientists the full depth of both to identify unknown chemical compounds.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Wiley_Wiley_Registry_NIST_EI_Mass_Spectral_Library_2026_4d3c8f440f.jpg" alt="Wiley: Wiley Registry/NIST EI Mass Spectral Library 2026" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Wiley_Wiley_Registry_NIST_EI_Mass_Spectral_Library_2026_4d3c8f440f.jpg 110w," sizes="100vw" width="1524" height="2161">For years, laboratories doing GC-MS analysis have relied on Wiley’s renowned <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/887">Wiley Registry of Mass Spectral Data</a> and the <a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/products/2461">NIST/EPA/NIH EI Mass Spectral Library</a> from the U.S. government’s National Institute of Standards and Technology (NIST) to power their analytical workflows. These two respected references are united in this database, one of the most comprehensive resources of its kind.The new 2026 edition updates the collection, adding tens of thousands of newly validated compounds across both libraries and bringing the total to more than 1.2 million electron ionization (EI) mass spectra—unique chemical “signatures” used to identify substances.The Wiley Registry/NIST Mass Spectral Library is part of Wiley’s growing portfolio of scientific data and research intelligence solutions, which spans spectral databases, chemistry and materials literature, and analytical tools supporting researchers from discovery through applied outcomes.Wiley’s spectral database solutions are trusted by leading pharmaceutical, environmental, and forensic laboratories worldwide, reflecting Wiley’s mission to transform knowledge into actionable intelligence that helps researchers make confident, high-stakes decisions.<blockquote>“When a scientist runs a sample through a mass spectrometer, the results are only as good as the reference data behind them,” said Armughan Rafat, Wiley senior vice president and chief AI &amp; data analytics officer. “By uniting the Wiley Registry and the NIST Library in a single resource, we deliver the breadth, quality, and validation scientists need to identify unknown compounds faster and with confidence.”</blockquote>Available in the most common instrumentation manufacturer formats, the library supports high-confidence analysis across GC-MS workflows.<h4>Spectral Databases</h4>Spectral databases contain unique molecular “fingerprints” of substances captured through analytical techniques such as infrared (IR), mass spectrometry (MS), nuclear magnetic resonance (NMR), and Raman spectroscopy. By comparing experimental spectra against validated reference data, researchers can accurately identify unknown compounds across a wide range of applications. &nbsp;<h4>About Wiley</h4>Wiley is a global leader in authoritative content and research intelligence for the advancement of scientific discovery, innovation, and learning. With more than 200 years at the center of the scholarly ecosystem, Wiley combines trusted publishing heritage with AI-powered platforms to transform how knowledge is discovered, accessed, and applied. From individual researchers and students to Fortune 500 R&amp;D teams, Wiley enables the transformation of scientific breakthroughs into real-world impact. From knowledge to impact—Wiley is redefining what’s possible in science and learning.&nbsp;

Wiley Releases Database Combining Two of the World’s Most Trusted Chemical Identification Resources

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

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Thermo Fisher Scientific

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)

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Wiley

Identification of the substance – what is in your sample? (Bioanalytic)

We are able to identify metabolites and products of chemical reactions, contaminants of biological and chemical substances and preparations, and perform profiling of a series of samples to study the kinetics of transformations.

<h4>Substance Identification - Looking for answers to what's in your sample? - we can help you.</h4>Substance identification based on LC-MS/MS techniques can involve single compounds or mixtures of substances. In our analyses, we rely primarily on the knowledge and skills we have acquired after many years of work. For analysis, we use full laboratory facilities for sample preparation and high-resolution mass spectrometry (<a target="_blank" rel="noopener noreferrer" href="https://labexperts.com.pl/o-nas/">equipment</a>).We use different work algorithms depending on the material we are dealing with and the analytical task to be solved. We use DDA (IDA) or DIA (SWATH) methods or targeted approaches (e.g. MRMhr) if we know what to expect. Thus, we are able to identify metabolites and products of chemical reactions, contaminants of biological and chemical substances and preparations, and perform profiling of a series of samples to study the kinetics of transformations.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Bioanalytic_Bioanalytic_Identification_of_the_substance_what_is_in_your_sample_2_0f425a648b.jpg" alt="Bioanalytic: Identification of the substance – what is in your sample" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Bioanalytic_Bioanalytic_Identification_of_the_substance_what_is_in_your_sample_2_0f425a648b.jpg 245w," sizes="100vw" width="1881" height="1156"><h4>COST OF SERVICE</h4>We determine the cost of the service individually. The final cost is influenced by many factors related to the nature of the sample itself and the client's expectations. Thus, the price depends, among other things, on the complexity of the sample preparation procedure, the scope and number of analyses, etc.The service includes (depending on individual arrangements):<h5>Development of sample preparation procedure</h5><ul><li>Depending on the matrix and test substances.</li></ul><h5>Development of analytical methods</h5><ul><li>Application of high-resolution LC-MS/MS analyses using DDA (IDA) or DIA (SWATH) experiments and software to support the development of targeted screening methods.</li></ul><h5>Analysis of results includes:</h5><ul><li>finding and identifying the substances of interest, interpreting MS/MS spectra and proposing a structural formula.</li><li>Comparative analysis of sample series, e.g. PCA,</li><li>profiling of analytes in sample series</li></ul><h5>Reporting of results</h5><ul><li>Compile results into easy-to-read reports.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Bioanalytic_Bioanalytic_Identification_of_the_substance_what_is_in_your_sample_3_c1b8adc1d0.jpg" alt="Bioanalytic: Identification of the substance – what is in your sample" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Bioanalytic_Bioanalytic_Identification_of_the_substance_what_is_in_your_sample_3_c1b8adc1d0.jpg 245w," sizes="100vw" width="1919" height="1208">

Analysis of Anabolic steroids (Bioanalytic)

We offer a highly specific and sensitive qualitative analysis of a wide profile of anabolics by LC-HR-MS/MS technique (detection limits range from 0.01 to 5 ng/ml, depending on the substance).

<h4>Anabolic substances in urine</h4>The effect of anabolic steroids (<a target="_blank" rel="noopener noreferrer" href="https://en.wikipedia.org/wiki/Anabolic_steroid">more information</a>) is to stimulate the growth of muscle mass and sometimes also bone mass by stimulating protein synthesis or altering calcium metabolism. This effect is often used in sports doping. However, anabolic steroids also have many side effects, as they strongly affect the body's overall hormonal balance.Anabolic steroids used by purely recreational athletes are still not banned in most countries, including Poland. Nevertheless, their amateur use during adolescence often results in the inability to continue a professional sports career into adulthood or leads to hormonal imbalances in the body.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Bioanalytic_Analysis_of_Anabolic_steroids_Bioanalytic_1_46fa2f41ca.jpg" alt="Bioanalytic: Analysis of Anabolic steroids." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Bioanalytic_Analysis_of_Anabolic_steroids_Bioanalytic_1_46fa2f41ca.jpg 245w," sizes="100vw" width="1200" height="740">If you want to know whether and which anabolic substances are present in the samples of athletes, or you want to exclude doping in this area - use the offer carried out by us together with the company <a target="_blank" rel="noopener noreferrer" href="http://www.lab4tox.pl/">Lab4Tox</a>. We offer a highly specific and sensitive qualitative analysis of a wide profile of anabolics by LC-HR-MS/MS technique (detection limits range from 0.01 to 5 ng/ml, depending on the substance). The use of high-resolution mass spectrometry (HR-MS and HR-MS/MS) in the analysis of anabolic steroids makes it possible to unequivocally confirm or exclude the presence of a given compound. The list of compounds at present includes:<ul><li>Boldenone undecylenate</li><li>Turinabol</li><li>Drostanolone enanthate</li><li>Drostanolone propionate</li><li>Methandienone</li><li>Methenolone acetate</li><li>Methenolone enanthate</li><li>Nandrolone phenylpropionate</li><li>Oxandrolone</li><li>Oxymetholone</li><li>Stanozolol</li><li>5-alpha-DHT</li><li>6-beta-hydroxymethandienone</li><li>19-norandrosterone</li><li>3'-hydroxystanazolol</li><li>4-beta-hydrozystanazolol</li><li>17-alpha-trenbolone</li><li>Testosterone caproate</li><li>Testosterone cypionate</li><li>Testosterone decanoate</li><li>Testosterone enanthate</li><li>Testosterone isocaproate</li><li>Testosterone phenylpropionate</li><li>Testosterone propionate</li><li>Testosterone undecanoate</li><li>Trenbolone acetate</li><li>Testosterone</li><li>Epitestosterone</li></ul>The list of compounds is not complete and will be systematically expanded according to customer needs.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Bioanalytic_Analysis_of_Anabolic_steroids_Bioanalytic_2_78729119b0.jpg" alt="Bioanalytic: Analysis of Anabolic steroids is carried out by us together with the company Lab4Tox." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Bioanalytic_Analysis_of_Anabolic_steroids_Bioanalytic_2_78729119b0.jpg 245w," sizes="100vw" width="625" height="100"><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=54&amp;distributorItems=315">Other analytical methods we offer</a>.

Analysis of Synthetic Peptide Hormones (Bioanalytic)

We offer highly specific and sensitive quantitative analysis of peptides by LC-MS/MS technique (LOQ < 1 ng/ml).

<h4>Synthetic peptide hormones - a study of the purity of formulations and composition of dietary supplements.</h4>In sports doping, small synthetic peptide hormones represent an increasingly attractive class of supplements for improving physical performance in amateur and professional athletes. Their use, depending on the type of peptide, is aimed primarily at building muscle tissue while intensifying fat reduction processes combined with the induction of the body's regenerative processes.Do you want to be sure that the peptide you are using is in the product in the amount declared by the manufacturer? Or do you have doubts that the supplement you are using is contaminated with these compounds? If you are troubled by these or similar questions - feel free to contact us. We perform tests in cooperation with <a target="_blank" rel="noopener noreferrer" href="http://www.lab4tox.pl">Lab4Tox</a>. We offer highly specific and sensitive quantitative analysis of peptides by LC-MS/MS technique (LOQ &lt; 1 ng/ml). At the moment, we analyze the following peptides:<ul><li>GHRP-2</li><li>GHRP-6</li><li>BPC-157</li><li>Melanotan-2</li></ul>The list of compounds is not complete and will be systematically expanded according to customer needs.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Bioanalytic_Analysis_of_Anabolic_steroids_Bioanalytic_2_78729119b0.jpg" alt="Bioanalytic: Analysis of Synthetic Peptide Hormones. We perform tests in cooperation withLab4Tox." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Bioanalytic_Analysis_of_Anabolic_steroids_Bioanalytic_2_78729119b0.jpg 245w," sizes="100vw" width="625" height="100"><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products?category=54&amp;distributorItems=315">Other analytical methods we offer</a>.

Wiley Maurer, Meyer, Pfleger, Weber: GC-MS Library of Drugs, Poisons, and Their Metabolites 6th Edition

The updated MMPW spectral database is a key resource for clinical and forensic toxicologists. It provides experimental data and classifies substances by toxicological category to support accurate compound identification.

<h4>The Essential Reference for Clinical and Forensic Toxicologists – Newly Updated!</h4>The newly updated 6th edition of the Maurer Meyer Pfleger Weber (MMPW) GC-MS library remains a trusted tool for identifying drugs, poisons, and their metabolites. Developed by experts in Saarland, the database includes 10,948 mass spectra and GC retention indices covering 175 substance categories, including psychoactive compounds, therapeutic drugs, and over 7,800 metabolites.Each compound is classified by toxicological relevance, and identification methods are now included as a PDF. The spectral data support forensic and clinical toxicologists in confident compound identification and data interpretation.Available in formats compatible with most mass spectrometry systems, the MMPW library is essential for any lab focused on toxicology. The latest update adds 518 datasets and nearly 1,900 structures, including recent designer drugs, cannabinoids, opioids, and stimulants.Wiley ensures data quality through strict validation processes, making MMPW a reliable and widely recognized reference in the field.

Wiley Mass Spectra of Designer Drugs 2026

Mass Spectra of Designer Drugs is the leading MS library for identifying designer drugs, pharmaceuticals, and chemical agents, trusted by forensic, clinical, and toxicology labs worldwide for fast, reliable identification of illicit substances.

Mass Spectra of Designer Drugs 2026 is an annually updated GC-MS spectral library designed to support forensic, clinical, and toxicological laboratories in identifying illicit and emerging psychoactive substances. The database contains 37,075 mass spectra representing 27,900 unique compounds, including opioids, fentanyl analogs, cannabinoids, amphetamines, cathinones, benzodiazepines, steroids, and many other designer drugs, metabolites, precursors, and related compounds.The 2026 release adds more than 700 new spectra and over 400 new compounds, with expanded coverage of nitazenes, fentanyls, synthetic cannabinoids, and other emerging substances through December 2025. Data are compiled in cooperation with criminal investigation departments and international partners, with spectra verified using reference libraries and spectral interpretation.The library includes detailed chemical structures, Kovats retention indices, and high-quality spectral data (average quality index 965). It is widely used by crime laboratories, medical examiners, border control agencies, and other forensic organizations supporting law enforcement activities worldwide.The database is compatible with major GC-MS vendor formats and is also available through Wiley KnowItAll software for multi-platform spectral analysis.<blockquote>Learn more at: <a target="_blank" rel="noopener noreferrer" href="https://sciencesolutions.wiley.com">sciencesolutions.wiley.com</a></blockquote>

Wiley LC-MSⁿ Library of Drugs, Poisons and Their Metabolites, 2nd Edition

The Maurer/Wissenbach/Weber LC-MSⁿ Library, 2nd Ed., offers MS² and MS³ spectra for over 2,270 drugs and 3,600+ metabolites. It enables proven metabolite-based LC-MSⁿ screening and is one of the few libraries focused on metabolite spectra.

<h4>Optimize LC-MSⁿ Screening with a Proven Metabolite-Based Library</h4>The Maurer/Wissenbach/Weber LC-MSⁿ Library, 2nd Edition, offers a powerful screening method using MS² and MS³ spectra for over 2,270 parent drugs and 3,600+ metabolites. It’s one of the few libraries focused specifically on metabolite spectra, improving sensitivity, selectivity, and reducing false negatives in LC-MS analysis.Developed for clinical and forensic applications, the library helps confirm compound identity and detect metabolites even when parent analytes are suppressed. It also reduces false positives through characteristic metabolite patterns.Includes instrument-specific training materials on sample prep, chromatography, and MS settings.<h5>Library Specs:</h5><ul><li>Spectra: &gt;13,000</li><li>Structures: 10,787</li><li>Compounds: &gt;2,270</li><li>Metabolites/Artifacts: &gt;3,600</li><li>Endogenous Molecules: 90</li></ul>Search compound coverage at <a target="_blank" rel="noopener noreferrer" href="https://spectrabase.com/">compoundsearch.com</a>.

Wiley Registry of Tandem Mass Spectral Data – MSforID

The "Wiley Registry of Tandem Mass Spectral Data: MS for ID" consists of 12,048 positive and negative mode spectra of over 1,000 compounds of interest for forensics, toxicology, and pathology. 

<h4>High Mass-Accuracy LC-MS/MS Library for Confident Identification</h4>The Wiley Registry of Tandem Mass Spectral Data: MS for ID includes 12,048 spectra in positive and negative modes covering 1,163 compounds relevant to forensics, toxicology, and pathology—including drugs, pesticides, and pharmaceuticals.Developed by the Oberacher team at Innsbruck Medical University under controlled conditions, the library offers ~95% specificity and &gt;92% sensitivity. It delivers fast, reproducible results and is highly transferable across LC-MS/MS platforms.Highlights:<ul><li>12,048 spectra for 1,000+ small bioorganic molecules</li><li>Optimized for high-accuracy identification</li><li>Includes advanced LC-MS/MS search algorithm</li><li>Compatible with most instrument formats</li></ul>Search compound coverage at: <a target="_blank" rel="noopener noreferrer" href="https://www.compoundsearch.com">www.compoundsearch.com</a>

Wiley LC-HR-MS/MS Library of Drugs, Poisons and Their Metabolites

The updated MMHW LC-HR-MS/MS library offers 5,500+ spectra of drugs, poisons, and metabolites. A trusted resource for toxicology, doping control, and environmental analysis.

<h4>From the Leader in Spectral Data</h4>The Maurer, Meyer, Helfer, Weber: LC-HR-MS/MS Library of Drugs, Poisons, and Their Metabolites, 2nd Edition (MMHW) is one of the most comprehensive LC-MS resources for clinical and forensic toxicologists. Developed by Prof. Hans H. Maurer and his team, the database emphasizes metabolites essential for accurate toxicological screening.This edition contains over 5,500 high-quality spectra, covering 2,300+ parent drugs/poisons and 3,200+ metabolites or artifacts across 100+ classification groups. Substances are categorized by toxicological relevance, with accompanying methods in PDF format.The data is carefully curated and reviewed by experts, ensuring reliable compound identification. Wiley collaborates with major MS vendors, supporting multiple instruments and formats for seamless workflow integration.<h4>Applications</h4>The MMHW library is trusted worldwide for compound analysis and verification in:<ul><li>Clinical and forensic toxicology</li><li>Doping control</li><li>Environmental and food chemistry</li><li>Pharmacokinetics and pathology</li></ul><h4>What’s New</h4>The 2nd edition adds 550+ new datasets, including designer drugs, cannabinoids, opioids, stimulants, and more.<h4>Specifications</h4><ul><li>Spectra: 5,558</li><li>Structures: 4,270</li><li>Unique Compounds: 2,763</li><li>Metabolites/Artifacts: &gt;3,250</li></ul>Available in KnowItAll and NIST formats, this library remains a critical resource for accurate, sensitive, and selective LC-HR-MS/MS screening.Search compound coverage at <a target="_blank" rel="noopener noreferrer" href="https://spectrabase.com/">compoundsearch.com</a>.

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