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A simple LIBS method for fast quantitative analysis of fly ashes

机译:一种用于飞灰快速定量分析的简单LIBS方法

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摘要

An evaluation of quantitative analysis of major elements (Ca, Al, Mg, Si and Fe) present in fly ashes was made using a simple and cost effective LIBS system. LIBS parameters were optimized to obtain best sensitivity and repeatability. In this purpose different binders were compared, leading to best sensitivity and mechanical stability when a binder containing silver and cellulose was employed in a 1:1 mass ratio.rnIn order to be able to determine major elements in different fly ashes, a multi-matrix calibration was employed. Four reference materials were employed for calibration and five other fly ashes were selected as sample. Concentrations obtained by LIBS were compared to wet acid digestion and alkali fusion followed by ICP-OES analysis. Ca, Mg, Fe, Si and Al concentrations found using the UBS method developed were in a; good agreement with the values obtained by classical methods.
机译:使用简单且经济高效的LIBS系统对飞灰中主要元素(Ca,Al,Mg,Si和Fe)的定量分析进行了评估。 LIBS参数经过优化以获得最佳灵敏度和可重复性。为此目的,比较了不同的粘合剂,当以质量比为1:1的比例使用含银和纤维素的粘合剂时,可获得最佳的灵敏度和机械稳定性。rn为了能够确定不同粉煤灰中的主要元素,使用了多种基质使用校准。使用四种参考材料进行校准,并选择其他五种飞灰作为样品。将通过LIBS获得的浓度与湿酸消解和碱熔法进行比较,然后进行ICP-OES分析。使用UBS方法发现的Ca,Mg,Fe,Si和Al浓度在a中;与经典方法获得的值非常吻合。

著录项

  • 来源
    《Fuel》 |2010年第11期|P.3468-3474|共7页
  • 作者单位

    Laboratoire des Sciences Analytiques UMR 5180, Universite Claude Bernard LYON1, Universite de LYON, LYON, France Laboratory of Atomic Spectroscopy, Masaryk University, BRNO, Czech Republic;

    rnLaboratoire des Sciences Analytiques UMR 5180, University Claude Bernard LYON1, Universite de LYON, LYON, France;

    rnService Central d'Analyse, USR59, SOLAIZE, France;

    rnLaboratory of Atomic Spectroscopy, Masaryk University, BRNO, Czech Republic;

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

    fly ashes; element determination; libs spectroscopy;

    机译:飞灰元素确定;谱仪;

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