摘要
采用新的数学模型研究二元颗粒混合物的取样误差，首次提出了取样的逻辑质量单元的理论，探讨了逻辑质量单元的物理意义，建立了按质量取样的标准偏差的计算公式．应用颗粒药品二元混合物的取样实验。
A new mathematical model was established for investigating the sampling of twocomponent particulate mixtures by mass. By the introduction of a new concept named as logical unit of sampling by mass, equations of estimating the standard deviation and relative standard deviation of sampling by mass were presented. The physical meaning of the logical unit of sampling by mass was also studied. These equations were verified by the sampling for chemical analysis of twocomponent medicine tablets. This theory is generally applicable so as to enrich the sampling theory of analytical chemistry and direct the sampling practices.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期387-391,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
二元颗粒混合物
混合物
取样误差
数学模型
Twocomponent particulate mixture, Sampling error, Mathematical model, Logical unit of sampling by mass
