Alfieri A, Crawford G, Ahmad I
Ministry of the Environment, Laboratory Services Branch, Rexdale, Ontario, Canada.
J Assoc Off Anal Chem. 1989 Sep-Oct;72(5):760-5.
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.
本文描述了一种快速且经济高效的样品制备技术，用于定性和定量测定水中多种有机污染物。该技术包括用乙酸酐对酚类进行原位同步乙酰化，以及从水中一步萃取酚乙酸酯、碱性和中性有机化合物。提取物经浓缩后用气相色谱/质谱法分析。给出了选定的碱性、中性和酚类化合物的回收率和精密度数据。讨论了原位乙酰化/萃取技术的优缺点。
