连续流动分析法测定土壤和底泥中总氰化物的方法研究
Environmental Science & Technology(2014)
Abstract
采用SKALAR SAN++型连续流动分析仪,将土壤样品在酸性条件下进行预蒸馏,馏出液中氰化物和氯胺T作用生成氯化氰,然后与异烟酸反应,经水解而生成戊烯二醛,最后与1,3-二甲基巴比妥酸作用生成紫蓝色化合物,于600 nm波长处测定其吸光度。结果表明该方法快速、准确、灵敏度高,稳定性好。
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Key words
total cyanide,soil,air-segmented,flow-analysis
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