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利用选择离子监测(SIM)检测苯并(a)芘的特征离子峰,建立了离子阱气相色谱质谱联用测定饮用水中苯并(a)芘的方法,苯并(a)芘的最小检出限为0.002ug/L。建立的方法灵敏度高、预处理简单、精密度高(4.7%~6.9%)、回收效果好(85.1%~100.8%),适宜用作水中的苯并(a)芘的定性定量检测。
A method for the determination of benzo (a) pyrene in drinking water by ion trap gas chromatography-mass spectrometry was established by using selective ion monitoring (SIM) to detect the characteristic ion peaks of benzo (a) pyrene. The limit is 0.002ug / L. The established method has the advantages of high sensitivity, simple pretreatment, high precision (4.7% -6.9%) and good recovery (85.1% -100.8%), and is suitable for the qualitative and quantitative detection of benzo (a) pyrene in water.