连续流动分析法测定土壤和底泥中总氰化物的方法研究  

Determination of Total Cyanide in Soil by Air-Segmented Continuous Flow-Analysis

作　　者：林休休[1] 蔡晔[2] 李月娥[2] 

机构地区：[1]苏州市职业大学,江苏苏州215104 [2]苏州市环境监测中心站,江苏苏州215004

出　　处：《环境科技》2014年第3期58-61,共4页Environmental Science and Technology

基　　金：苏州市职业大学青年基金资助项目(2010SZDX10)

摘　　要：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。The determination of total cyanide in the soil by SKALAR SAN＋＋continuous flow analysis was discussed. The soil samples were pre-distilled in acidic conditions. The photometric determination was based on the reaction of cyanide with chloramine-T under the formation of cyanogen chloride. It reacted with pyridine-4-carbonicacid and 1,3-dimethylbarbituric acid to give a violet blue color. This color was measured at 600 nm. The results showed that the method was fast, accurate, high sensitivity and good stability.

关 键 词：连续流动分析法 总氰化物 土壤 底泥 

分 类 号：X8[环境科学与工程—环境工程]