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首页> 外文期刊>International journal of environmental analytical chemistry >Experimental design in the analysis of interferential effects for the determination of Sr in high Ca/Sr ratio brine by inductively coupled plasma atomic emission spectroscopy technique
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Experimental design in the analysis of interferential effects for the determination of Sr in high Ca/Sr ratio brine by inductively coupled plasma atomic emission spectroscopy technique

机译:电感耦合等离子体原子发射光谱法测定高Ca / Sr比盐水中Sr的干扰效应分析的实验设计

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摘要

The ICP-AES technique and experimental design were employed to precisely determine the content of strontium in high Ca/Sr ratio oil field brine of Qaidam basin (Qinghai province, western China). From the statistical analysis using six factor factorial, it was found that Ca2+ is the significant interfering element for the recovery of strontium. Accurate strontium content was derived by eliminating the interference contribution according to the influencing model. The experimental results indicate that, under optimal conditions, the ICP-AES method for strontium determination has low LOD and LOQ, and the precision and accuracy are good with the relatively standard deviation below 1 % and recovery between 98.0% ~ 105.0%.
机译:ICP-AES技术和实验设计用于精确测定柴达木盆地(中国西部青海)高钙/锶比油田盐水中的锶含量。通过使用六因子析因的统计分析,发现Ca2 +是锶回收的重要干扰元素。根据影响模型,通过消除干扰贡献可得出准确的锶含量。实验结果表明,在最佳条件下,ICP-AES测定锶的LOD和LOQ较低,相对标准偏差在1%以下,回收率在98.0%〜105.0%之间,精密度和准确性均较好。

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  • 作者单位

    Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes,Chinese Academy of Sciences, Xining 810008, China;

    Qinghai Entry-Exit Inspection and Quarantine Bureau, Xining 810000, China;

    Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes,Chinese Academy of Sciences, Xining 810008, China,Graduate School of Chinese Academy of Sciences,Beijing 100049, China;

    Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes,Chinese Academy of Sciences, Xining 810008, China;

    Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes,Chinese Academy of Sciences, Xining 810008, China;

    Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes,Chinese Academy of Sciences, Xining 810008, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    experimental design; strontium; high ca/sr ratio brine; inductively coupled plasma optical emission spectrometry;

    机译:实验设计;锶;高ca / sr比盐水电感耦合等离子体发射光谱;

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