| ICP—AES直接测定土壤,沉积物中常,微量元素的光谱干扰和？… |
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| 引用本文： | 李芳 杨秀环. ICP—AES直接测定土壤,沉积物中常,微量元素的光谱干扰和？…[J]. 光谱学与光谱分析, 2000, 20(4): 501-506 |
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| 作者姓名： | 李芳 杨秀环 |
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| 作者单位： | 中山大学化学系,广州 |
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| 摘 要： | 本文研究了感耦等离子体原子发射光谱（ＥＣＰ－ＡＥＳ）法直接测定土、沉积物中常、微量元素的光谱干扰，以及用多元光谱拟合（ＭＳＦ）校正的方法。讨论了积分时间及谱线漂移对ＭＳＦ法的影响。比较了离峰扣背景法与ＭＳＦ法的效果，对水系沉积物ＧＢＷ０７３０６测定结果表明，ＭＳＦ法得出的结果更接近推荐值，且其检出限及相对标准偏差比离峰扣背景法分别改善了１．３～９．０倍和１．１～４．９倍。
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| 关 键 词： | 土壤 沉积物 光谱干扰 ICP－AES 元素测定 |
Studies on Spectral Interferences and Correction in Simultaneous Determination of Multielements in Sediments with ICP-AES |
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| Fang LI,Xiuhuan YANG,Baoying TANG,Hongtao LIU and Zhanxia ZHANG. Studies on Spectral Interferences and Correction in Simultaneous Determination of Multielements in Sediments with ICP-AES[J]. Spectroscopy and Spectral Analysis, 2000, 20(4): 501-506 |
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| Authors: | Fang LI Xiuhuan YANG Baoying TANG Hongtao LIU Zhanxia ZHANG |
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| Affiliation: | Department of Chemistry, Zhongshan University, 510275 Guangzhou. |
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| Abstract: | Spectral interferences in the simultaneous determination of multi-elements in sediments and soil by ICP-AES were investigated and the multicomponent spectral fitting (MSF) method was used for the correction. Several factors affecting the MSF method such as the signal integration time and the spectra shift were studied. The comparison between MSF and off-peak background correction were made by analyzing national standard reference material: sediment GBW07306. The detection limit and the precision could be improved by a factor of 1.3-9.0 and 1.1-4.9 respectively and the results agreed better with those of the certified values when using MSF correction. |
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| Keywords: | Soil Sediment Spectral interference MSF ICP-AES |
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