农产品中转基因检测抽样研究-第3部分: 从实验室样品到分析样品

Sampling for genetically modified organismcontent analysis in agricultural products-part 3: process from laboratory sample to analytical sample

中文关键词:  转基因  抽样  农产品

英文关键词:genetically modified organisms  sampling  agricultural products

中文摘要:

      目的 针对农产品中转基因检测抽样过程, 研究从实验室样品中采取和制备分析样品过程中各参数对最终结果准确性的影响。方法 通过5%控制RSD, 计算各粒度下的实验室样品、中间样品和分析样品的最小留样量; 并通过计算对各相关参数进行考察。结果 得到缩分设计及缩分引起的方差; 合成制样方差、合成实验室样品总估计方差并对其进行了最终进行实验确认。结论 综合考虑检验要求、分析过程和制样过程, 得出从实验室样品到分析结果全过程(实验室内过程)中各个参数的优化方案。

英文摘要:

      Objective To study the effects of process from lot to laboratory sample on the accuracy of results during sampling of genetically modified organism (GMO) content analysis in agricultural products. Methods By 5% control of RSD, minimum sample mass for the various particle sizes of the laboratory sample, medium samples, and the analytical samples were calculated, and the related factors were investigated. Results Several recommended processes and their relative variance were given. Combined with sample preparation variance, total analytical variance of laboratory sample was practically validated. Conclusion The optimization scheme of the whole process of the laboratory samples to the analysis results was obtained under the consideration of inspection requirements, analysis process and sample preparation process.