美国加利福尼亚农药管理部门将高效液谱质谱联用法(LCMS)用于检测农药残留,提高了残留检测水平。分别利用LCMS法和旧的检测方法对449个食品样本进行了检测,结果显示,86%的样本可检测到农药残留,这其中78%的样品中的残留成分只有用LCMS法才能检测出。利用LCMS方法检测的样品中,97.1%的样品的残留量在合法的范围内,只有2.9%的样本残留含量超标。 The United States, California, pesticide management department will use high performance liquid chromatography-mass spectrometry (LCMS) for the detection of pesticide residues, increased residue detection level. 449 food samples were tested by LCMS and the old detection methods respectively. The results showed that 86% of the samples could detect pesticide residues, of which 78% of the samples were only detected by LCMS. Among the samples detected by LCMS, 97.1% of the samples were within the legal range, while only 2.9% of the samples were over-standard.