浊点萃取-石墨炉原子吸收光谱法测定环境样品中的镉

O6; 建立了浊点萃取分离富集石墨炉原子吸收光谱法测定环境样品中痕量镉的方法.浊点萃取选择8-羟基喹啉为螯合剂,Triton X-100为表面活性剂.在pH 8～9、0.01%8-羟基喹啉和0.2%-Triton X-100、80 ℃水浴20 min的优化条件下,所建立方法的检出限为2.5 ng/L; 加标回收率为94.6%～106.2%; 对样品溶液进行富集的富集因子为17.利用该方法分别测定了2个实际水样和2个国家标准参考物质中的总镉含量,结果令人满意....

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Published in:分析化学 2009, Vol.37 (6), p.893-896
Main Authors: 宋雪洁, 刘欣丽, 段太成, 陈杭亭
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container_issue 6
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container_title 分析化学
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creator 宋雪洁
刘欣丽
段太成
陈杭亭
description O6; 建立了浊点萃取分离富集石墨炉原子吸收光谱法测定环境样品中痕量镉的方法.浊点萃取选择8-羟基喹啉为螯合剂,Triton X-100为表面活性剂.在pH 8～9、0.01%8-羟基喹啉和0.2%-Triton X-100、80 ℃水浴20 min的优化条件下,所建立方法的检出限为2.5 ng/L; 加标回收率为94.6%～106.2%; 对样品溶液进行富集的富集因子为17.利用该方法分别测定了2个实际水样和2个国家标准参考物质中的总镉含量,结果令人满意.
doi_str_mv 10.3321/j.issn:0253-3820.2009.06.022
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title 浊点萃取-石墨炉原子吸收光谱法测定环境样品中的镉
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