Liquid-Liquid-Liquid Microextraction of Nerve Agents
Researchers from Vertox Laboratory, Defence Research and Development Establishment (Gwalior, India) used a liquid-liquid-liquid microextraction technique followed by liquid chromatography?mass spectrometry (LC?MS) to examine alkyl alkylphosphonic acids, which are important environmental markers of nerve agents.
Researchers from Vertox Laboratory, Defence Research and Development Establishment (Gwalior, India) used a liquid-liquid-liquid microextraction technique followed by liquid chromatography–mass spectrometry (LC–MS) to examine alkyl alkylphosphonic acids, which are important environmental markers of nerve agents. In their technique, the acids were extracted froman acidified aqueous phase to an organic phase located in the pores of a hollow fiber. They were then back extracted into an alkaline acceptor phase in the lumen of the fiber. The researchers validated the method and then applied it to detection of the acids in a water sample provided by the Organization for Prohibition of Chemical Weapons during a proficiency test.
Dispersive Liquid-Liquid Microextraction: A Review and Roundup of Green Sample Prep Advancements
May 15th 2024The still relatively new technique has distinct advantages, but a few of those benefits make it incompatible with some of the currently accepted principles of green sample preparation.
Reflecting on the Influence of the Current State of Sample Preparation on GC, Part 2: Techniques
May 9th 2024In this installment, we examine trends in the use of sample preparation techniques through the lens of instrumental analysis by gas chromatography (GC) and GC–mass spectrometry (GC–MS).
