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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.

Oct 5, 2026

24:06
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?
24:32
So we would all love the latest and greatest, but it's not always possible.
24:36
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.
24:48
Uh, the standard techniques for LC is usually going to be LC-MS/MS.
24:52
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.
25:04
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...
25:14
Probably you've used them more with metabolomics, um, these very high-end instruments that have super-duper incredible selectivity.
30:18
So that was really great.

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