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Arielle Cocozza
Environmental analytical chemist and National PFAS Technical Lead at ALS USA Environmental, specializing in PFAS and emerging contaminant analysis by LC-MS/MS.
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Oct 5, 2026
Episode 81: PFAS, 6PPD-Quinone & the Science of Emerging Contaminants w/ Arielle Cocozza (ALS USA)
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24:06David OlivaHOST
And you've worked across so many different types of analysis and techniques, LC-MS, MS, GC-MS-MS, GC-FID Are there matrices or analytes where you still reach for older techniques over the latest instrumentation? Or is it, is it generally whatever is the latest and greatest is typically the best fit for your work?
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24:32Arielle CocozzaGUEST
So we would all love the latest and greatest, but it's not always possible.
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24:36Arielle CocozzaGUEST
Um, when, you know, determining an analytical technique, I would say that the, the standard techniques you're going to see for things that are GC based is going to be GC-MS.
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24:52Arielle CocozzaGUEST
Um, some things can call for LC UV, um, or DAD detectors, um, but I would say the standard, um, would be those mass spectrometer methods.
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25:04Arielle CocozzaGUEST
But, um, not looking at high resolution, I would say if you're-- when you're talking state-of-the-art, that's what I think is, you know, the, the Orbitrap or the...
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25:14Arielle CocozzaGUEST
Probably you've used them more with metabolomics, um, these very high-end instruments that have super-duper incredible selectivity.