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Adapting a SCIEX high flow source for microflow LC

To set up a SCIEX high flow source for microflow LC (Turbo V ion source, DuoSpray source or IonDrive Turbo V ion source), first you must replace the wider bore electrodes with more narrow bore hybrid electrodes. Note with the OptiFlow Turbo V ion sources, there are...

Identifying the unknown PFAS profile in firefighting foams/AFFF

According to a recent study from Harvard University, the US EPA, and NIEHS, traditional targeted analysis techniques poorly characterize the PFAS composition of contemporary PFAS-based firefighting foams, know as aqueous film-forming foams (AFFF).  Using the EPA 533 PFAS drinking water method for the analyte list, the researchers found that targeted mass spectrometry methods accounted for <1% of organic fluorine content.  This is important because it demonstrates that targeted analysis methods miss nearly all the PFAS compounds in modern AFFF mixtures, thus underestimating the risk to human health and the environment.

sMRM Concurrency Calculator

This excel sheet allows you to quickly estimate the MRM concurrency and approximate dwell time for your Scheduled MRM Algorithm acquisition method. Paste your MRM method with retention times into the input tab then calculate the Excel workbook. Plots will update to...

Identifying the unknown PFAS profile in firefighting foams/AFFF

Identifying the unknown PFAS profile in firefighting foams/AFFF

According to a recent study from Harvard University, the US EPA, and NIEHS, traditional targeted analysis techniques poorly characterize the PFAS composition of contemporary PFAS-based firefighting foams, know as aqueous film-forming foams (AFFF).  Using the EPA 533 PFAS drinking water method for the analyte list, the researchers found that targeted mass spectrometry methods accounted for <1% of organic fluorine content.  This is important because it demonstrates that targeted analysis methods miss nearly all the PFAS compounds in modern AFFF mixtures, thus underestimating the risk to human health and the environment.

The risky business of aflatoxins in milk

The risky business of aflatoxins in milk

If you’re in the dairy or food testing business, you know the threat aflatoxins pose. Aflatoxins are a type of mycotoxin produced by Aspergillus parasiticus, aspergillus flavus , and rarely aspergillus nomius.1 These are likely the most extensively researched group of mycotoxins because of their adverse health effects.2 What’s more, they are widely found in a variety of crops, namely maize, tree nuts, and spices. Believed to be primarily caused by rising temperatures and humidity, these naturally occurring fungi grow on crops in the field, or during storage of feed and raw materials, where they can potentially produce toxins that enter the food chain.

The honey sting

The honey sting

As a consumer it’s hard for me not to feel inundated with claims that our food is “all-natural” or “chemical-free” or that we should buy certain “superfoods” for their health benefits.  We read labels and trust that the product we are buying is what we are truly...

Full, partial and empty capsid ratios for AAV analysis: What’s the big deal?

Full, partial and empty capsid ratios for AAV analysis: What’s the big deal?

For many of you working to develop gene therapy drugs, you know that the time to market the drug is critical. Because gene therapeutics cure diseases by targeting specific genes, it is a constant race to see who develops the drug first. Unlike other classes of drugs where multiple medications can be used to treat a disease, whoever is first to develop a gene therapy drug wins.

A rising star in food allergen research: proteomics of shellfish allergen

A rising star in food allergen research: proteomics of shellfish allergen

It’s important to know what you’re eating, especially if you suffer from a food allergy.

About 220 million people worldwide live with a food allergy.1 These numbers, along with the complexity and severity of conditions, continue to rise. In America, there are about 32 million food allergy sufferers—5.6 million of those are children under the age of 18.2.2 That’s 1 out of every 13 children, or about 2 in every classroom. From a financial perspective, the cost of food allergy childcare for US families is up to $25 billion

Routine cannabis screening is here. Will your lab reap the benefits?

Routine cannabis screening is here. Will your lab reap the benefits?

Fast, accurate, and robust solution for routine commercial cannabis testing

As the world debates cannabis legalization for therapeutic applications and recreational use, the trends are shifting.  Medicinal use of cannabis is legal in an increasing number of countries worldwide, including 33 states and the District of Columbia in the United States. Uruguay was the first country in the world to legalize the sale, cultivation, and distribution of cannabis in 2013. In the United States, Washington and Colorado were the first to fully legalize cannabis in 2012. By the end of 2019, 10 states have legalized recreational use for adults over the age of 21, with 64% of Americans favoring the move

Mysterious Vaping Detectives Part 2

Mysterious Vaping Detectives Part 2

In our last blog, I gave you some current highlights about the mysterious vaping illness that was making headlines (and still is). The condition now known as, e-cigarette or vaping, product use-associated lung injury (EVALI) has sickened thousands and killed 57...