激光微等离子体光谱分析法测定土壤中的铝钙

doi:10.3964/j.issn.1000-0593.2008.01.047

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摘要：采用YJG-Ⅱ激光微区分析仪结合CCD光栅光谱仪构成的激光微等离子体光谱分析系统，在减压氩气环境下，以土壤标样为样品，测量了土壤中铝元素和钙元素的含量，对激光微等离子体光谱分析法定量分析土壤中元素的准确度与可行性进行了研究。实验中分别以Al Ⅰ 394.40 nm和Ca Ⅱ 396.85 nm为分析线，采用“三标准试样法”，由计算机拟合logI～logC工作曲线，对土壤中铝、钙进行了测量。结果表明：对此两种元素定量分析的相对标准偏差(RSD)最大为5.80%，定量分析结果与标准值的相对偏差最大为7.65%，说明该方法对土壤中铝、钙的测定满足分析精确度的要求。

关键词：激光微等离子体光谱;定量分析;土壤;铝;钙

Abstract：Laser micro-spectral analyzer, coupled with CCD spectrometer, was used to determine soil elements in argon atmosphere at reduced pressure in the authors’ experiment. The accuracy and availability of this method were studied. With Al Ⅰ 394.40 nm and Ca Ⅱ 396.85 nm as spectral analysis lines, using “the three standard samples method”, the contents of Al and Ca in soil were determined. The results show that the maximum of relative standard deviation (RSD) of quantitative analysis is 5.80%; the maximum of relative difference between the quantitative analysis result and the standard value is 7.65%, suggesting that the accuracy of determination of Al and Ca in soil meets the challenge of quantitative analysis.

Key words：Laser micro-plasma spectroscopy;Quantitative analysis;Soil;Aluminum;Calcium

收稿日期: 2006-10-08 修订日期: 2007-01-23

中图分类号:

O657.3

通讯作者: 郭庆林 E-mail: zyljq@126.com

引用本文:

郭庆林,周玉龙,张秋琳,贾龙广,怀素芳,陈金忠. 激光微等离子体光谱分析法测定土壤中的铝钙[J]. 光谱学与光谱分析, 2008, 28(01): 200-202.
GUO Qing-lin, ZHOU Yu-long, ZHANG Qiu-lin, JIA Long-guang, HUAI Su-fang, CHEN Jin-zhong. Determination of Al and Ca in Soil by Laser Micro-Plasma Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(01): 200-202.

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