海水中甲基对硫磷和马拉硫磷的气相色谱法测定

Gas Chromatographic Determination of the Parathion and Methyl-Parothion in Sea Water

基于《水质有机磷农药的测定——气相色谱法》,结合海水中农药的含量低可降解等特点,对检测海水中甲基对硫磷和马拉硫磷的方法进行了改进.本方法改用电子捕获检测器和玻璃填充柱用的担体、固定液;及色谱条件.实验室的验证结果表明:修改后的检测方法检测灵敏度可以满足对海水中甲基对硫磷和马拉硫磷较低含量的检测要求.

This method is based on the water quality-determination of organic phosphorus pesticide in water-gas chromatography. We use the electron capture detector; change the carrier and stationary liquid used in the glass column and the GC conditions in this method. The test results show that this method's sensitivity may satisfy the needs of determinating the parathion and methyl-parothion in sea water, in which their contents are lower in general.