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顶空气相色谱法测定饮水中氰化物
引用本文:郑瑾,肖枫.顶空气相色谱法测定饮水中氰化物[J].内蒙古环境科学,2003,15(2):15-17.
作者姓名:郑瑾  肖枫
作者单位:呼和浩特铁路局中心卫生防疫站 呼和浩特010050 (郑瑾),呼和浩特铁路局中心卫生防疫站 呼和浩特010050(肖枫)
摘    要:采用顶空气相色谱法,测定饮水中氰化物。对水样保存特殊性的影响,色谱柱的选择及实验条件进行研究。结果表明,CN^-浓度在1-18ug/l呈线性关系,最低检出限为0.35ug/l,高、中、低三浓度测定相对标准偏差分别为2.68%、6.69%、6.98%,回收率范围83.4-119.2%,满足卫生检验要求。是一种简便快速、实用性强的分析方法。

关 键 词:顶空气相色谱法  测定  饮水  氰化物  原理  PH值
文章编号:1007-0370(2003)06-0015-03
修稿时间:2003年7月17日

DETERMINATION OF CYANIDE IN DRINKING WATER BY HEADSPACE GAS CHROMATOGRAPHY
ZHENG Jin,XIAO Feng.DETERMINATION OF CYANIDE IN DRINKING WATER BY HEADSPACE GAS CHROMATOGRAPHY[J].Inner Mongolia Environmental Protection,2003,15(2):15-17.
Authors:ZHENG Jin  XIAO Feng
Abstract:Determination of cyanide in drinking water was performed by headspace gas chromatography.The effect of special treated water sample,the selection and condition of separation column were studied in this assay.The results showed that the calibration curve revealed linear relationship in the range of cyanide from lug/L to 18ug/L.The lowest detectable concentration was 0.35ug/L.The standard relative deviation of high,middle and low concentrations were 2.68%,6.69%,6.98% respectively.The recovery rates were 83.4-119.2%.It was precision according to the requirement of sanitary analysis.It was a simple,rapid and practical analytical technique.
Keywords:Headspace Gas Chromatography  Drinking water  Cyanide
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