顶空气相色谱法测定废水中甲硫醚  

Determination of dimethyl sulfide in wastewater by headspacegas chromatography

作　　者：张立江[1] 冯辉[1] 景长勇[1] 刘爱琴[1] 

机构地区：[1]华北电力大学环境科学与工程学院,河北保定071003

出　　处：《河北工业科技》2006年第1期31-33,共3页Hebei Journal of Industrial Science and Technology

摘　　要：采用静态顶空气相色谱法，即β，β’-氧二丙腈填充柱，火焰光度检测器（FPD），研究了气液体积比、平衡时间、ρ（NaCl）等因素对废水中甲硫醚测定的影响，建立了废水中甲硫醚测定的新方法，取得了0．02mg／L的检出限、97．6％～103．4％的回收率和0．79／6～2．0%的相对标准偏差。该方法简单，快速，准确。Based on the method of static headspace-GC with β,β＇-oxydipropionitrile packed column and flame photometric detector （FPD） , factors influencing the determination such as equilibrium temperature, equilibrium time, gas and liquid phase ratio, concentration of salt in water were discussed. A new method of determination of the dimethyl sulfide concentration in wastewater is established. And the detection limit is 0.02 mg/L. The recovery of dimethyl sulfide falls within the range of 97.6%-103.4%, and corresponding RSD within 0.7% -2.0%. The method is simple, direct and accurate.

关 键 词：顶空气相色谱法 甲硫醚 废水监测 

分 类 号：X832[环境科学与工程—环境工程]