Determination of inorganic anions in ethyl acetate by in-line hollow fiber membrane extraction with ion chromatography |
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Authors: | Zhen Zhen Hu Ying Ying Zhong Yun Chang Fan Yan Zhu |
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Affiliation: | Department of Chemistry, Xixi Campus, Zhejiang University, Hangzhou 310028, China |
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Abstract: | In this work, a novel hollow fiber membrane extractor was set up to extract inorganic anions from ethyl acetate using deionized water. Inorganic anions in slightly soluble organic solvents can be determined by the in-line hollow fiber membrane extractor coupled with ion chromatography at first time. Different aspects of the extraction procedure such as magnetic stirring speed, extraction flow rate and extraction time were optimized to achieve high extraction efficiency and good separation results. Satisfactory linear range, limits of detection and good repeatability were obtained. The procedure was applied to analyze inorganic anions in two commercial ethyl acetate samples. |
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Keywords: | Inorganic anions Ethyl acetate In-line hollow fiber membrane extraction Ion chromatography |
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