摘要
前处理采用QuEChERS方法,利用三重四极杆气质联用仪对芒果样品中的10种有机磷农药残留进行检测,通过线性关系、相对标准偏差、添加回收率等指标确定方法的准确性和可行性。结果表明,10种有机磷农药在0.01~0.40 mg/L线性关系良好(R≥0.996);10种有机磷农药在0.04 mg/L的混合标准溶液相对标准偏差为1.44%~4.10%,符合检测要求;10种有机磷农药在添加浓度分别为0.02、0.04、0.08、0.16、0.32 mg/L的混合标液时,平均添加回收率为75.00%~112.50%。说明该方法定性准确、操作简单,适合芒果样品日常的有机磷农药残留检测。
QuEChERS method was used in pretreatment,and 10 kinds of organophosphorus pesticide residues in mango samples were detected by triple quadrupole GC-MS.The accuracy and feasibility of the method were determined by linear relationship,relative standard deviation and addition recovery rate.The linear correlation coefficient R of 10 organophosphorus pesticides in the range of 0.01-0.40 mg/L is greater than 0.996,and the linear relationship is good.The relative standard deviation of 10 organophosphorus pesticides in 0.04 mg/L mixed standard solution is 1.44%-4.10%,which meets the detection requirements.The average recovery rate of 10 organophosphorus pesticides was 75.00-112.50% when the mixed standard solution with the concentration of 0.02,0.04,0.08,0.16 and 0.32 mg/L was added.The results show that the method is accurate in qualitative analysis and simple in operation,and it is suitable for the daily detection of organophosphorus pesticide residues in mango samples.
作者
罗贵文
林思思
陈廷春
张汉莉
牙家璇
何炳竹
LUO Gui-wen;LIN Si-si;CHEN Ting-chun(Baise Agricultural Products Quality and Safety Testing Center,Baise,Guangxi 533000)
出处
《安徽农业科学》
CAS
2024年第13期154-156,共3页
Journal of Anhui Agricultural Sciences
