SIMPLIFIED EVALUATION OF THE SMALLEST SAMPLE MASS THAT SHOULD BE TAKEN FOR AN ACCURATE CHEMICAL ANALYSIS

机译：简化了应采取的最小样品质量的评估，以便准确化学分析

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Technology has been developed very much during the last decades. In order to get better materials, with precise chemical composition, electrical properties, thermal properties, etc, it is a must to be capable to accomplish chemical analysis of blends, sometimes dealing with components in very low levels. Today, there are a number of new analytical techniques which allows quantifying extremely low levels of analytes, even employing very small samples. However, using small samples could generate sampling errors. Experimental determination of the minimum sample masses in order to get good accuracy can be a very costly operation, and a time demanding one. In this paper is proposed a simple method to evaluate the minimum sample mass that should be used in chemical analysis, to get low dispersion results.

机译：在过去的几十年中，技术已经发展起来。为了获得更好的材料，具有精确的化学成分，电性能，热性能等，必须能够实现混合物的化学分析，有时会在非常低的水平下处理组件。如今，有许多新的分析技术，允许量化极低的分析物，甚至采用非常小的样品。但是，使用小样本可能会产生采样误差。实验确定最小样本块以获得良好的精度可以是一个非常昂贵的操作，以及要求的时间。本文提出了一种简单的方法来评估应在化学分析中使用的最小样品质量，得到低分散结果。

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来源
《IMEKO World Congress;Brazilian Congress of Metrology》|2006年||共4页
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作者
Ricardo Rezende Zucchini;
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原文格式 PDF
正文语种
中图分类 TB22-53;
关键词
Sampling; Sampling Constant; Precision; Particulate Matter;

机译：取样;取样常数;精确;颗粒物质;

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SIMPLIFIED EVALUATION OF THE SMALLEST SAMPLE MASS THAT SHOULD BE TAKEN FOR AN ACCURATE CHEMICAL ANALYSIS

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