| 二次富集气相色谱法测定环境中的痕量磷化氢 |
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| 引用本文： | 李建兵,张桂玲,张经,刘素美,任景玲.二次富集气相色谱法测定环境中的痕量磷化氢[J].海洋环境科学,2009,28(3). |
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| 作者姓名： | 李建兵 张桂玲 张经 刘素美 任景玲 |
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| 作者单位： | 1. 中国海洋大学,海洋化学理论与工程技术教育部重点实验室,山东,青岛,266100
2. 华东师范大学,河口海岸国家重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，中国海洋大学专项基金 |
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| 摘 要： | 本文研究了富集柱类型、富集温度和色谱操作条件等因素对二次富集气相色谱法测定环境中痕量PH3的影响,并将其应用于青岛大气和东海陆架沉积物中PH3的测定,取得了较为满意的结果.该方法具有操作简单、灵敏度高、分析速度快、干扰少等优点,其检测限为0.02 pg、精密度2.0%、线性范围为0.56 pg～5.6 ng.用此方法测定了冬季东海大陆架表层沉积物中PH3含量为(0.51～23.10)×10-9,其分布明显受到人类活动的影响,研究结果还表明东海沉积物中的PH3是海洋中磷的潜在来源之一;青岛崂山大气中PH3日变化趋势说明大气中PH3明显受光照的影响.
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| 关 键 词： | 磷化氢 气相色谱法 毛细柱 东海 沉积物 大气 |
Determination of trace phosphine in the environments by using gas chromatographyGC |
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| LI Jian-bing,ZHANG Gui-ling,ZHANG Jing,LIU Su-mei,REN Jing-ling.Determination of trace phosphine in the environments by using gas chromatographyGC[J].Marine Environmental Science,2009,28(3). |
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| Authors: | LI Jian-bing ZHANG Gui-ling ZHANG Jing LIU Su-mei REN Jing-ling |
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| Institution: | 1.Key Laboratory of Marine Chemistry Theory and Technology;Ministry of Education;College of Chemistry and Chemical Engineering;Ocean University of China;Qingdao 266100;China;2.State Key Laboratory of Estuarine and Coastal Research;East China Normal University;Shanghai 200062;China |
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| Abstract: | A gas chromatographic method is usepresented to determine the trace phosphine(PH3) in the natural environments by GC withusing capillary column as a trap.The influence of cryogenic trap and chromatographic operation conditions were studied to obtain the best results.The method has several characteristics such as simple,easy to handle,high analysis speed and little interference.The method was applied successfully to determine phosphine in the atmosphere of Qingdao and sediments in the East China Sea.The resu... |
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| Keywords: | phosphine gas chromatographyGC capillary column East China Sea sediment air |
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