云南植物药萝芙木中51种农药残留的测定
Determination of 51 kinds of pesticide residues in Yunnan rauvolfia
云南民族大学学报:自然科学版,2015,24(3):194-198

李家雄 LJX

摘要


用超高效液相色谱(UPLC)、双柱毛细管气相色谱(GC)、高效液相色谱-二级质谱(HPLC -MS/MS)分析方法对云南萝芙木进行51种农药残留测定.各测定方法在一定范围内线性关系良好,准确度和精密度均符合农残分析要求,在超高效液相色谱和高效液相色谱串联二级质谱中仅检测出多菌灵,含量分别为0.012mg·kg^-1和0.018mg·kg^-1,未超出国家食品中农药最大残留限量标准,没有检出其它50种农药. This research used an ultra high-performance liquid chromatography (UPLC), and double column capillary gas chromatography (GC), and high-performance liquid chromatography-the secondary mass spectrometry(HPLC-MS/MS)to determine 51 species pesticide residues in Yunnan rauvolfia samples. The results showed that the above-mentioned methods had the features of a good linear relationship, precision, stability and reproducibility. Only carbendazim among the 51 kinds of pesticides in the samples was detected by UPLC and HPLC-MS/MS. Its content was 0.012 mg·kg^-1 and 0.018 mg·kg^-1 respectively. The content in this sample did not exceed the limits of the maximum residue standards for food in China. Other 50 kinds of pesticides were not detected.

参考



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