For this reason, by applicating high sensitive and selective MS, this paper mainly introduced the development and application of the latest high performance liquid chromatography/ atomospheric pressure ionization mass spectrometry ( HPLC/ APIMS) method to analyse trace OPs in water. 结合高灵敏度、高选择性的质谱鉴定器,本文主要介绍最新的HPLC/APIMS方法在水中痕量有机磷农药测定方面的进展和应用。