We are thrilled to mark International Women’s Day 2019 by making our fourth annual donation to World Cancer Research Fund, a global not-for-profit organization and leading authority on the links between diet, nutrition, physical activity, and cancer. In fact, our...
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Why traditional MS/MS falls short for ADCs and how electron-activated dissociation (EAD) changes the equation
Antibody-drug conjugates (ADCs) are among the most promising—and analytically demanding—modalities in biopharma today. By combining large, heterogeneous antibodies with chemically labile payloads and linkers, ADCs introduce a level of structural complexity that challenges conventional analytical workflows. It also poses the challenge that the very features you need to measure are often the easiest to lose during analysis.
Managing ADC characterization: The challenge of turning complexity into confidence
Unlike traditional monoclonal antibodies, ADCs combine an antibody backbone with linker chemistry and a cytotoxic payload. This multi-component architecture introduces overlapping layers of heterogeneity, including drug-to-antibody ratio (DAR) distributions, charge variants, post-translational modifications, and structural changes at both the intact and subunit levels. Across ADC development, these characteristics are considered critical quality attributes that must be characterized, understood, and monitored.
ADC analytics FAQs: Answering the most common questions about ADC characterization
Antibody-drug conjugates (ADCs) have emerged as one of the fastest-growing classes of biotherapeutics, combining the targeting specificity of monoclonal antibodies with the potency of cytotoxic payloads. However, this unique architecture also introduces significant analytical complexity. From drug-to-antibody ratio (DAR) distributions and charge variants to conjugation sites and structural modifications, ADCs present multiple, interconnected sources of heterogeneity that must be understood to ensure product quality and performance.
Sterile but toxic: Cereulide detection in food matrices
In a recent webinar, Ming Gao, Ph.D., Senior Research Chemist at Mérieux NutriSciences, explored the growing challenge of cereulide contamination in food products and the analytical strategies needed to detect this heat-stable toxin at trace levels. The session examined how LC-MS/MS can help laboratories overcome the limitations of traditional microbiological screening and meet emerging regulatory requirements.
Your success and voice go a long way!
At the heart of everything we do is ensuring that your workflows and team are empowered to achieve optimal results with your SCIEX instruments, software, consumables, and services. Every interaction with SCIEX is designed to support your success through the dedication...
Pharma perspectives: The influence of LC-MS innovation on drug development outsourcing
It is no secret that (bio)pharmaceutical research and development is complex, both scientific and regulatory processes. Working for a contract research organization and more recently for SCIEX has provided an interesting perspective on trends the market experiences that affect many of us.
Overcoming uncertainty in your PFAS analysis
Just like gum on the bottom of a shoe, the existence of per- and poly-fluorinated alkyl substances (PFAS) in our environment is a sticky one. If you’re in the field of environmental testing, then you’re all too familiar with the threat these substances have on public health. While we have learned a lot about them over the years, there is still much more to understand. With the right detection methods, we can gather the information we need to empower us to make informed decisions on reducing the risks they impose.
6 Signs it’s time for a new vendor
A lab’s success depends on many factors from instrument quality to efficient operations, including being partnered with the right vendor. A vendor is more than just a supplier. They should provide you with a high-level quality of support in maximizing the lifespan and performance of your systems, reducing downtime, enhancing ROI and more. How do you know if you’re partnered with the right one? Here are six signs it might be time to find someone new.
Selecting an LC-MS system for quantitation of pharmaceutical drug development
We understand you are busy, needing to prioritize running instruments, reporting results and managing your laboratory to meet deadlines. We created a solution guide to explain how SCIEX systems fit in the drug development pipeline to save you time evaluating options.
Nitrosamines: Where are we now?
Nitrosamines are a large group of N-nitroso compounds that share a common functional N-N=O group. They are produced by a chemical reaction between a nitrosating agent and a secondary or tertiary amine. Back in 2018, nitrosamines suddenly found themselves in the spotlight when they were unexpectedly detected in medications for high blood pressure. Since then, they have been found in several other prescription medications, including those for heartburn, acid reflux and diabetes, resulting in manufacturers recalling some common medications.
LC-MS/MS Method for Biotherapeutic Drug Development Challenges
Traditionally, the pharmacokinetic profile of biotherapeutics such as insulin glargine, adalimumab, trastuzumab and others, used gold standard LBAs to assess dose-response during drug discovery and development. However, LBAs require a specific antibody reagent to be developed for each mAb variant, a process that is often incompatible with the compressed timeframes encountered during the initial stages of drug development.
QTOF Technology for Targeted and Unknown Forensic Drugs Screening Workflows
In this study, the Wisconsin State Laboratory of Hygiene (WSLH) outlines the comparison of their existing technology and how SCIEX LC-MS/MS systems can assist them in their forensic research. The WSLH routinely analyze for 300 forensic drug compounds in over 18,000 samples per year.
Expert Advice to Help You with Routine Food Testing in the Lab
Between 3-6 November 2015, the Recent Advances in Food Analysis (RAFA) 2015 Symposium took place in Prague, Czech Republic.
Contaminants and Novel Approaches in Food Analysis
During RAFA 2015, New Food Magazine hosted a roundtable (sponsored by SCIEX) to bring together experts with routine food testing backgrounds to discuss the latest industry trends, challenges, recent technological advances, and expectations of future laboratories.
Polar Pesticide Analysis by CESI-MS for Routine Food Testing – A Poster Talk
Method development for routine food testing presents many challenges – whether you are looking to increase the speed of your screening or simplify your method there can be different solutions suited to the task at hand. During RAFA 2015 in Prague, Steve Lock, Market Development Manager for SCIEX Separations in EMEA outlines how CESI-MS may be best suited for polar pesticide analysis.
Using Mass Spectrometry to Detect Trace Ingredients in Food – a Poster Talk
In today’s poster talk Jens Dahlmann, Senior Applications Specialist at SCIEX discusses how mass spectrometry might be best suited to the identification of trace ingredients in foods.
How You Can Detect Pesticide 1080 In Milk & Infant Formula – A Poster Talk
In this poster talk André Schreiber, Applications and Product Manager for Food and Environmental Markets at SCIEX guides you through a new method developed in conjunction with Association of Analytical Communities (AOAC). The method is designed to better detect a harmful substance that the infant formula and milk industry are under threat from – Sodium Fluoroacetate, otherwise known as Compound 1080 or Monofluoroacetate.
Drug Metabolism and Bioanalysis Journal Articles Focus on Drug Metabolism and so Much More
Check-out the top articles that focus on innovations in drug metabolism as well as small molecule quantitation and biologics bioanalysis. Exciting advancements! We can’t wait to see all that will come in 2016! Quantitative analysis of maytansinoid (DM1) in human serum...
Reasons why LC-MS/MS is my method of choice for meat speciation and authenticity testing
The meat trade hasn’t had a good reputation since the horsemeat scandal that burst into headlines in 2013. The scandal has left such a mark that meat speciation, adulteration and authenticity are still high-profile topics today. Think about it from a...
Purchasing Mass Spec Technology for Your Forensic Lab
What does every scientist think about in the lab? Validation. This is the feeling I encountered while reading a recent scientific report on nature.com. What struck me was not only the study itself which discounted cannabinoid incorporation into hair as a method for...
A Reliable Method for the Identification, Quantitation, and Confirmation of Pesticides
When carrying out routine pesticide identification tests in your lab how simple is the process of identification, quantitation, and final confirmation from sample to sample? A reliable method designed to generate multiple data sets and confirm sample data in parallel with your test can save an awful lot of time and effort which is especially helpful as the demand for routine testing increases. In this poster talk, Detlev Schleuder, Support Manager for Food & Environmental Markets, explains how the new QTRAP® 6500+ system can optimize your laboratory’s output with this simple method.
The Gluten Free Cookie Label Test
I am a label reader. I like to eat healthily and know what the long, confusing ingredients on the side of a package mean. Therefore, in the spirit of the holiday season, I dedicate this blog to all the gluten intolerant folks out there whose only wish is to eat a yummy cookie while also being absolutely positively sure it is gluten free.
Testing Liquor for Authenticity Using LC-MS/MS Technology
The Proof is in Your Holiday Drink If you think bootlegging was limited to the age of Prohibition then you have never tested liquor for authenticity using mass spectrometry. Maybe it is a scientist thing, but we simply cannot help but bring up the subject as people...
Five Tips for Safe Handling Holiday Decorations
Bring out the boxes of decorations this holiday season and while you are at it, keep in mind you could be facing dangerous exposure to chemicals too. From trees to garland, candles and toys, here are some tips to keep in mind for safe handling. Trees Fake trees are...
Gain New Insights Into Human Spermatogenesis with this “Click & Easy” OneOmics Workflow
A recent webcast by Charles Pineau, Director of Protim, IRSET, Rennes, France, demonstrates how you can use the OneOmics™ Platform as a "Click & Easy" workflow for integrating next-generation proteomics (NGP) data with next-generation sequencing (NGS) data. Dr....
Thanksgiving Menu: A Detectable Feast!
On Thursday 26th November 2015, millions of households across the United States will sit down to a hearty traditional Thanksgiving meal. The Thanksgiving holiday is when people celebrate the blessings of the year, in particular the harvest.
Are there Antibiotics in your Thanksgiving Turkey?
Truth – the first turkey I ever cooked was still frozen when it hit our plates. I couldn’t figure out why that thing was taking so long to roast. Then it hit me. I forgot to defrost the bird. If I recall correctly, even the giblets were still in it. It was ten p.m. when I broke the news to my guests that the turkey was not happening. A pizza was ordered, and everyone breathed a sigh of relief that they would not be suffering from a bout of food poisoning.
Celebrate with a Pesticide Free Thanksgiving!
Before you start wondering if you should buy organic ingredients this Thanksgiving, it is good to know regulating bodies set and monitor allowable pesticide limits within our food supply. Pesticides that help control pests, disease, and deter unwanted animals from eating supplies found in fields, mills, and facilities. How and when this testing takes place in the United States is overseen by the Environmental Protection Agency (EPA) according to five primary regulating statutes.
Keeping Up with Synthetic Cannabinoids Using Mass Spec
Facts about Synthetic Cannabinoids and why you need to pay attention to evolving science
Mass Spectrometry Helps Researchers Solve a Mystery about Type 2 Diabetes Drug
This is an article from November 21, 2013. We thought it was an interesting story to share with you on this World Diabetes Day.
For the research conducted by the Australian and Canadian researchers, the analysis at the molecular level was optimized on SCIEX instrumentation, including the SCIEX TripleTOF® 5600 and the SCIEX QTRAP® 5500 system