摘要
目的探讨采用不分流进样、毛细管气相色谱柱和电子捕获检测器(ECD)系列建立一种测定水中碘化物的方法。方法样品经衍生化处理后用气相色谱分离,ECD检测。结果该方法与《生活饮用水卫生规范》2001相比,方法最低检测质量从0.005ng降至0.001ng。采用逐步稀释法测得方法的检出限为1μg/L。线性范围为1.0～10μg/L。RSD为2.5%～3.4%,回收率为96.3%～101.5%。结论该方法操作简捷,检测限低,线性范围合理,适合于水中碘化物的检测。
Objective To develop a method to determine iodine of water. Methods Samples were derivatively treated and injected at no split injection mode into GC analysis system with the capillary column and ECD. Results Compared with the sanitary regulations of drinking water defined in 2001 （China）, the determination method showed a lowest detection mass of 0.001 ng, a linear range of 1.0-10μg/L and a detection limit of 1μg/L. RSDs and recovery rates were 2.5%-3.4% and 96.3%-101.5%. Conclusion This method is simple and the detection limit is low, the linear range is acceptable.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2007年第1期47-48,共2页
Journal of Environment and Health
关键词
水
色谱法
气相
毛细管色谱柱
碘
Water
Chromatography, gas
Capillary column
Iodine
