首页> 外文期刊>Spectrochimica Acta, Part B. Atomic Spectroscopy >DIRECT DETERMINATION OF METALS IN SOLID SAMPLES BY GRAPHITE-FURNACE ATOMIC ABSORPTION SPECTROMETRY - DOES SAMPLE MASS INFLUENCE THE ANALYTICAL RESULTS
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DIRECT DETERMINATION OF METALS IN SOLID SAMPLES BY GRAPHITE-FURNACE ATOMIC ABSORPTION SPECTROMETRY - DOES SAMPLE MASS INFLUENCE THE ANALYTICAL RESULTS

机译:石墨炉原子吸收光谱法直接测定固体样品中的金属-样品量对分析结果的影响吗?

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摘要

In our previous experience on the determination of metals by direct analysis of the solid sample using graphite-furnace atomic absorption spectrometry, it was found that the use of too large or too small mass of sample may lead to erroneous results, even if the analyte content lies within the linear dynamic range. Few references, however, can be found in the literature dealing with this problem. The ANOVA performed on a total of 293 measurements of copper in a Vitamin complex, proves that sample masses smaller than 0.3 mg or larger than 1.1 mg give overestimated and underestimated results, respectively. (C) 1997 Elsevier Science B.V. [References: 22]
机译:在我们先前使用石墨炉原子吸收光谱法直接分析固体样品来测定金属的经验中,发现使用过大或过少的样品质量都可能导致错误的结果,即使分析物含量处于线性动态范围内。但是,在有关此问题的文献中很少找到参考。对维生素复合物中铜的总共293次测量进行的方差分析证明,小于0.3毫克或大于1.1毫克的样品质量分别给出了高估和低估的结果。 (C)1997 Elsevier Science B.V. [参考:22]

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