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GC-VUV of Residual Solvents – Improving Static Headspace Sampling with Water

Jack Cochran, VUV Analytics

Detectability in static headspace – GC for residual solvents analysis is largely driven by a solvent’s ability to partition from the pharmaceutical ingredient diluent into the…

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GC-VUV of Residual Solvents – Non-Target Analysis

Jack Cochran, VUV Analytics

Our first efforts at doing residual solvents analysis in pharmaceutical products using static headspace – GC-VUV involved the Class 1 and Class 2 compounds specified by…

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GC-VUV of Residual Solvents – No Matrix Effects with the Gerstel MPS2 Static Headspace Autosampler

Jack Cochran, VUV Analytics

GC-VUV of Residual Solvents – No Matrix Effects with the Gerstel MPS2 Static Headspace Autosampler Jack Cochran, VUV Analytics Analytical chemists are routinely concerned with matrix…

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GC-VUV of Residual Solvents – Go with The Flow and Speed Up Your Analyses

Jack Cochran, VUV Analytics

Gas chromatographers have been taught for ages now to pay attention to van Deemter (or at least, his equation) to get the best separations by using…

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GC-VUV of Residual Solvents – The Lazy Analytical Chemist

Jack Cochran, VUV Analytics

I borrowed “The Lazy Analytical Chemist” part of my title from my friend and colleague Steve Lehotay, who once said in a presentation, “A good analytical…

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Splitting Up is Not Hard to Do – Configuring Vacuum Ultraviolet Spectroscopy and Mass Spectrometry for Gas Chromatography

Jack Cochran, VUV Analytics

As humans, we crave the comfort of the familiar, a friend of mine told me long ago.  It’s true, but I’ve always been willing to stretch…

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Simplifying a Complex Matrix….with Spectral Filters!

Alex Hodgson, VUV Analytics

A complex sample matrix is the bane of analytical chemistry, and it’s why we go through such pains in sample preparation and GC method development to…

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Vacuum Ultraviolet Absorbance Spectra – When a Little Means a Lot

Jack Cochran, VUV Analytics

As a gas chromatographer using MS the coeluting-isomer problem didn’t bother me too much, as it allowed me to practice the art of separation. Inevitably though,…

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Building the VUV Entourage in Terpene Analysis

Jack Cochran, VUV Analytics

In a recent “In My View” article I wrote for The Cannabis Scientist, which is a “mini magazine” from The Analytical Scientist, I posed the question…

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