There are a lot of conferences vying for your attention every year. The Global CESI-MS Symposium on October 10-11 in the Netherlands is one you can’t afford to miss. It is the place to hear about the latest advancements made through the adoption of CESI-MS...
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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.
PFAS analysis in food: a robustness study in sensitivity and stability
The combination of per- and polyfluoroalkyl substances (PFAS) testing, trace-level regulatory requirements and complex MS applications can be intimidating. In a recent webinar, now available on demand, SCIEX PFAS expert Craig Butt demonstrated how the new SCIEX 7500+ system can help make PFAS testing easier.
Questions and answers to help improve your mycotoxin analysis
During a recent webinar I shared method details for mycotoxin analysis on the SCIEX 7500 system. In this blog i will share the Q&A for the submitted questions that we did not have chance to answer during the live webinar.
Excel macro for calculating averages or percent CVs from replicates in a 384 -well plate
This excel workbook is designed to be used with data copied from a SCIEX OS software Analytics module results file
Back to the new basics: Part 1 | Making the leap from GC-MS to LC-MS
Producing accurate results quickly in a demanding environment is no easy feat for analytical scientists. What’s more, many of us are constantly questioning ourselves—I certainly am—about whether we are employing the best technique for the analysis at hand.
It’s an overwhelming thought, considering the wide range of tools that are available to choose from, each of which offers varying levels of capacity, sensitivity, selectivity, specificity and cost. How do you meet the unique needs of your organization without breaking the bank? I get it, and I’m not here to convince you it’s easy. My aim is to guide you through the process to help you make the right decision for you.
How to optimize sample plating to run Echo MS system in ‘Fast acquisition mode’
The Echo MS system can acquire data extremely rapidly, at 1 second per sample. To achieve this speed, it should be ensured that there is adequate time between ejections for the analyte signal to return to baseline between ejections. Plating your samples such that you...
How do I check the quality of the Auto Retention Time Calibration used in my Extractor processing?
When using the Auto-Calibration option in Extractor, a set of retention time calibration peptides will be determined automatically from the library and used for RT calibration. To determine how the fit looks for the calibration on each datafile, follow these steps....
sMRM Pro Builder template tutorial
The sMRM Pro Builder template is an Excel-based tool that can help you implement large panels of analytes in your lab. The Excel sheet will take your preliminary experimental results and compute retention times, retention time window widths and dwell time weighting to optimize your targeted assay.
MRM method transfer from a SCIEX Triple Quad or QTRAP 6500+ system to the SCIEX 7500 system
General recommendations when beginning method development Objective: The purpose of this document is to provide a quick reference for transferring MRM-based quantification methods from a SCIEX Triple Quad or QTRAP 6500+ system to a SCIEX 7500 system. While the best...
Short-chain PFAS compounds are on the rise- Craig’s PFAS Vodcast Cora Young
Read time: 2 minutes Short-chain per- and polyfluoroalkyl substances (PFAS) are increasing in the Canadian Arctic environment, with the most rapid increases occurring post-2000, according to a recent study in Geophysical Research Letters (April 2020). For example,...
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
Top Three Ways SCIEX has fun with Halloween Candy
Halloween is the time for lots of trick or treats ranging from chocolate bars to lollipops and oh so good candy corn. However, come October 31, it is time to mind sneaky ingredients that have the best disguise of all. From pork extracts, artificial sweeteners, to stuff that is hard to pronounce, SCIEX digs up some of our recent Food and Beverage studies for some ghoulishly good fun.
The Top Ten Things Scientists Think about on Halloween
The Top Ten Things Scientists Think about on Halloween
Analyze Large Omic Data Sets with Cloud Computing and See What More You Can Accomplish
Our scientific world is expanding. With each passing day, new discoveries are made, old discoveries are verified, and more data are generated. Large data sets are now the norm for omics experiments such as genomics, transcriptomics, proteomics, and metabolomics....
Simultaneous Detection of Multiple Species in Meat Using LC-MS/MS Technology
Smart food shopping starts with labels. However, what if we told you the ingredient list may not be all that it seems? According to Food Safety News, producers are sneaking lower quality ingredients into our food to save money. This type of food fraud is estimated to cost the global food industry $10 to $15 billion per year. If you think back to the Middle Ages, even our ancestors were consumed with cost savings by inserting nutshells, seeds, berries, and more within their spices.
Using Mass Spectrometry to Screen Hundreds of Known and Unknown Metabolites
In the field of metabolomics, you typically choose to identify and characterize as many compounds as possible in an unbiased fashion, or screen for a specific set of compounds that are biologically relevant to your research. The beauty of the TripleTOF® System is that...
MultiOmics Research For the Study of Placental Development
A recent study by Katy Williams (UCSF), Christie Hunter (SCIEX), and Andrew Olsen (Advaita) used the iPathwayGuide within the OneOmics cloud computing environment to help understand how placental development can go awry during certain pregnancy complications such as pre-eclampsia.
This LC-MS/MS Application Detects Almond and Peanut Allergens in Spices
If you suffer from peanut allergies, you may want to think twice before diving into a bowl of something spicy. The reason being, some shipments of North American and European products containing ground cumin, cumin powder, cayenne pepper, paprika, and pilli-pilli...
Mass Spectrometry Detects Very Low Levels of Chemical Compounds in Asia Pacific Waters
Did you know that even though most of the world is covered in water, access to clean drinkingwater remains a problem? Take Asia for example where 62,000 people have lost their lives between 2001 and 2005 due to water-related disaster and illness. Clean water is...
Simultaneously Detect Different Types of Beer Microbes Using XP-PCR
Spoiler Alert – How to Save Time Testing for Bacteria in Beer? Nothing ruins a batch of beer worse than bacteria, specifically Pediococcus and Lactobacillus. Too much of these hop resistant genes can get carried away causing spoilage and sour beer. It is why breweries...