二元颗粒混合物按质量取样的误差研究

二元颗粒混合物的随机取样方式有两种：一是按颗粒数目取样,二是按质量取样本文对二元颗粒混合物按质量取样的误差进行了深入研究,详细分析了混合物的各种参对被测组分含量取样误差的影响,应用Ｍｏｎｔｅ Ｃａｒｌｏ技术对取样进行了模拟。以颗粒药品的二元混合物为例对按颗粒数目取样和按质量取样的误差进行了比较。此项研究对于分析取样理论和应用具有重要的价值。

Investigation on the Error of Sampling by Mass for Chemical Analysis of Two-component Particulate Mixture

Investigation on the sampling error of two-component Particulate mixture is very essential to the general theory of sampling for chemical analysis. In this paper, the error of Sampling by mass was studied in detail which included the effects of the parameters of the mixture on the sampling error of sought-for element. Monte Carlo technique was employed to simulate the sampling procedure. The sampling error for two-component particulate mixtures by different modes was also compared. This study is valuable in both theoretical and practical aspects of sampling in analytical chemistry.