摘要
本文详述了马拉硫磷、敌敌畏、乐果标准溶液的制备、定值和数据处理.木研究制备的标准溶液的标准值为:马拉硫磷99.9μg/m1,敌敌畏99.5μg/m1,乐果100μg/m1,其不确定度为马拉硫磷2.3μg/m1,敌敌畏1.5μg/m1,乐果2 μg/m1.对三种标准溶液的稳定性、均匀性研究表明:本研究制备的标准溶液均匀性良好、稳定性大于一年.本标准溶液已经国家技术监督局批准为国家级标准物质.
The preparation and certified value of the standard solutions of malathion,DDVP and Roger have been studied through interlaboratory comparison using GC.The certified values and uncertainty were as follows: malathion 99.9 2.3ug/ml, DDVP 99.5 1.5 ug/ml, Roger 100 2 ug/ml. The results showed that the homogeneity and stability are desirable. The expiration date is over one year.
出处
《粮食储藏》
1993年第6期24-30,共7页
Grain Storage
