摘要
为准确、可靠地检测蔬菜中毒死蜱、三唑磷残留,采用NY/T 761-2008《蔬菜和水果中有机磷、有机氯、拟除虫菊酯和氨基甲酸酯类农药多残留检测方法》,每7 d对同一质量浓度质控样品平行测定2~3次,统计20组有效数据,通过计算平均值、标准偏差得出上下控制限、警告限和辅助线,绘制出由实验室人员检测技术水平、试剂、设备、分析方法和环境因素条件下的质量控制图.该质量控制图不仅可用于实际检测过程中对检测结果进行监控,还可为实验室人员技术能力确认、实验室间比对和能力验证等分析质量控制行为提供判定依据.
Abstract
The effective and feasible method was discussed about ensuring the accurate detection result of chlorpyrifos,triazophos residue determining in vegetables.The current national standard pesticide multi residue screen methods for determination of organophosphorus pesticides,organochlorine pesticedes,pyrethroid pesticides and carbamate pesticides in vegetables and fruits(NY/T 761-2008) was used as a detection method.The same quality control sample was determined two or three times every week,and the effective data of the twenty groups were counted.By calculating the average value and standard deviation of the data,the control limit,alert limit and auxiliary line were obtained.With the limits,a quality control chart was outlined,by which the laboratory testing skills,reagents,equipment,analytical methods and environmental factors were taken into account.The chart was not only helpful in controlling the testing results,but also useful in the judgment for quality control activities,such as laboratory personnel technical ability confirmation,inter laboratory comparisons and capability validation.
国家科技期刊平台
NSTL
维普
万方数据