| 用聚酰胺吸附剂预浓缩及气相色谱法测定空气中的硫双威 |
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| 引用本文： | 陈雁君,卢英华,刘君,温新民,靳秋梅,解瑞红,张建英. 用聚酰胺吸附剂预浓缩及气相色谱法测定空气中的硫双威[J]. 分析化学, 1999, 27(9): 1047-1049 |
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| 作者姓名： | 陈雁君 卢英华 刘君 温新民 靳秋梅 解瑞红 张建英 |
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| 作者单位： | 济宁医学院化学教研室,济宁,272113 |
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| 摘 要： | 采用３００－４５０μｍ的聚酰胺吸附剂管采集空气中硫双威，经氯仿萃取后用火光度听气相地直接测定其含量，进行了吸附剂选择解吸时间和效率、采样稳定性等实验研究，并用该法对菜田喷施现场和生产车间进行了空气检测，收到了满意效果。空气中硫双威的最低检出浓度为０．０５ｍｇ／ｍ＾３；线性范围为０￣１０ｍｇ／ｍ＾３，标准加入回收率为９８．４－１００．４％，相对标准偏差为２．８－４．４％。
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| 关 键 词： | 硫双威 空气 聚酰胺吸附剂 气相色谱法 |
Determination of Thiodicarb in Air by Polyamide Adsorbent Preconcentration and Gas Chromatography |
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| Chen Yanjun,Lu Yinghua,Liu Jun,Wen Xinmin,Jin Qiumei,Xie Ruihong,Zhang Jianying. Determination of Thiodicarb in Air by Polyamide Adsorbent Preconcentration and Gas Chromatography[J]. Chinese Journal of Analytical Chemistry, 1999, 27(9): 1047-1049 |
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| Authors: | Chen Yanjun Lu Yinghua Liu Jun Wen Xinmin Jin Qiumei Xie Ruihong Zhang Jianying |
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| Abstract: | A method is reported for the determination of thiodicarb in the air by GC. Air samples were collected by polyamide absorbent tube, eluted with chloroform, then determination by GC equipped with flame photometry detector. This method is simple, rapid, accurate and precise. The sampling efficiency of polyamide to thiodicarb, the eluting efficiency of chloroform and the stability of thiodicarb on polyamide adsorbent were studied. Under the analytical conditions mentioned, detection limit of thiodicarb was 0.05 mg/m3. Average recoveries of thiodicarb were in the range of 98.4%-100.4% . The relative standard deviations were in the range of 2.8%-4.4% . |
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| Keywords: | Thiodicab air polyamide adsorbent gas chromatography |
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