| 酸性磷酸酯的气相色谱分析 |
| 摘要点击 1365 全文点击 2349 投稿时间：1997-03-11 |
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| 中文关键词 有机磷萃取剂 酸性磷酸酯 气相色谱 衍生化 |
| 英文关键词 organophosphorus extracting agent acidic phosphate ester GC drivation |
| 作者 | 单位 | | 邓南圣 | 武汉大学环境科学系, 武汉, 430072 | | 田世忠 | 武汉大学环境科学系, 武汉, 430072 | | 刘赞 | 武汉大学环境科学系, 武汉, 430072 | | 李美敏 | 武汉大学环境科学系, 武汉, 430072 | | 玉晖 | 武汉大学环境科学系, 武汉, 430072 |
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| 中文摘要 |
| 通过对酸性磷酸酯的季铵盐热裂解、硅烷化、碘甲烷甲酯化和重氮甲烷甲酯化等衍生化方法进行比较,确定碘甲烷甲酯化方法为酸性磷酸酯最佳衍生化方法。对酸性磷酸酯碘甲烷甲酯化方法的气相色谱的定量分析进行了系统的研究,建立了酸性磷酸酯的简便、快速、准确、灵敏度高的气相色谱分析法。单2-乙基己基膦酸单2-乙基己基酯(P507)的回收率为97.0%-111%,最小检出量为0.92ng;二(2-乙基己基)磷酸(P204)的回收率为94.8%-97.8%,最小检出量为1.33ng。 |
| 英文摘要 |
| Derivation methods of quaternary ammonium salt thermolysis,silanization,methyl iodide-esterification and diazomethane-esterication for acidic phosphate ester were compared in this paper.Results indicated that methyl iodide-esterification is the best derived method. GC quantitative analysis of this method was systematically studied and a simple,quick,precise and high sensity GC analytical method was developed.Percent recovery of P507 is 97.0%-111% and its detection limit is 0.92 ng through this method.Percent recovery of P204 is 94.8%-97.8% and its detection limit is 1.33 ng.With the establishing of this method,the studies on the behave of organophosphorus extracting agents especially the acidic phosphates in water environment reach a new level. |
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