Analysis of Phenols in Water at the ppb Level Using Direct Supercritical Fluid Extraction of Aqueous Samples Combined On-line With Supercritical Fluid Chromatography–Mass Spectrometry

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Edward D. Ramsey, Brian Minty, Michael A. McCullagh, David E. Games and Anthony T. Rees


Abstract

A high pressure multivalve switching system has provided a means of interfacing a direct aqueous SFE vessel to a packed column SFC-MS system. Using full scan negative ion atmospheric pressure chemical ionization, the combined SFE–SFC–MS instrumentation enabled the analysis of phenols in water at the 40 ppb level.


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