摘要
用气相色谱法对水样中残留的三唑磷的含量进行测定。水样经苯提取，采用HP-5毛细管色谱柱（30m×0．32mm，0．25μm）分离，用氮磷检测器测定。三唑磷的质量浓度在0．0051．0mg·L^-1范围内与其峰面积呈线性关系，检出限（3S／N）为3．5μg·L^-1。方法的回收率在94．0％～97．5％之间，测定结果的相对标准偏差（n=6）小于3．7％。
Residual amounts of triazophos in water sample were determined by GC with nitrogen-phosphorus detector （NPD）. Residual triazophos in water sample was extracted with benzene and separated on HP-5 capillary column （30m×0.32mm,0.25μm）. Linear relationship between values of peak area and mass concentration of triazophos was obtained in the range of 0. 005--1. 0 mg·L^-1, with detection limit （3S/N） of 3. 5μg·L^-1. Test for recovery was made by standard addition method, giving results in the range of 94.0%--97.5%. Values of RSD＇s （n=6） found were less than 3.7%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2009年第6期717-718,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
关键词
气相色谱法
氮磷检测器
三唑磷
水样
GC
Nitrogen-phosphorus detector
Triazophos
Water sample
