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One-step sample preparation technique for broad spectrum gas chromatographic/mass spectrometric determination of
A Alfieri1, G Crawford, I Ahmad
1Ministry of the Environment, Laboratory Services Branch, Rexdale, Ontario, Canada.
Abstract:
A rapid and cost-effective sample preparation technique is described for the qualitative and quantitative determination of a broad spectrum of organic contaminants in water. The technique involves simultaneous-in-situ acetylation of phenols with acetic anhydride and one-step extraction of phenol acetates and basic and neutral organic compounds from water. The extract is concentrated and analyzed by gas chromatography/mass spectrometry. The recovery and precision data of selected base, neutral, and phenolic compounds are given. The advantages and disadvantages of the in-situ acetylation/extraction technique are discussed.