作者：李海峰

作者单位：中国计量科学研究院, 北京 100013

关键词：标准物质; 内标; 仪器分析; 电感耦合等离子体发射光谱仪; 汞

摘要：

通过建立漂移与时间的线性或非线性函数关系,可对测量数据进行合理校正,提高分析测试的准确度和精密度。结果表明,校正函数与谱线选择有关,通过本方法校正可提高分析测试的精密度约10倍,达到0.07%~0.09%。通过方法验证,表明预测值与实测值基本一致,应用该方法是可行的。该方法可对大批量数据进行快速、方便的漂移校正,有效提高分析测试的准确度和精密度。

Study on time function revision of ICP-OES signal drift

LI Hai-feng

National Institute of Metrology, Beijing 100013, China

Abstract: The linear or non-linear functional formula was used to correct data reasonably to increase accuracy and precision. The results show that the formula correlate with analysis line. The accuracy was about 0.07%~0.09%, 10-fold or so increased. Through validating the method, the data measured was coincided with that predicted, which showed that this method was feasible in drift correction. Thus, this method can be applied to analysis amounts of data, increasing analysis accuracy and precision.

Keywords: Certified reference materials; Internal standard; Instrument analysis; ICP-OES; Mercury

2009, 35(2): 11-13  收稿日期: 2008-6-11;收到修改稿日期: 2008-9-18

基金项目: 中国计量科学研究院科研项目(AKY0818)

作者简介: 李海峰(1976-),男,山东东营人,助理研究员,理学博士,主要从事无机化学分析工作。

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