六六六、滴滴涕分析质量控制结果分析

为了解我国检验机构在农药残留检验方面的质量水平，2002年5月使用六六六、滴滴涕质控双样开展了分析质量控制工作。检测结果表明虽然此项检验工作在全国已开展将近30年，但仍存在问题。数据不合格率为16．5％，13家单位中全部结果合格的有7家，3家单位存在较大问题。质量控制工作对于发现问题，促进问题的解决具有重要作用，应当在检测机构经常性开展以保证检测结果的准确。

Analysis of analytical quality assurance of 666 and DDT

In order to find out the analytical quality for pesticide residue by different institutions in China, two 666 and DDT quality control samples were used in the work of analytical quality assurance in May, 2002. The results indicated that among the data obtained by 13 institutions, the proportion of disqualification detection data reached 16 5%. Seven of 13 institutions provided the eligible data but 3 did not. It suggests that quality control analysis should be carried out frequently so as to keep the results accurate.