Determination of trace rare earth elements in coal fly ash and atmospheric particulates by electrothermal vaporization inductively coupled plasma mass spectrometry with slurry sampling

被引：51
作者：
Zhang, Yuefei [1 ]
Jiang, Zucheng [1 ]
He, Man [1 ]
Hu, Bin [1 ]
机构：
[1] Wuhan Univ, Dept Chem, Wuhan 430072, Hubei, Peoples R China
来源：
ENVIRONMENTAL POLLUTION | 2007年 / 148卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ETV-ICP-MS; rare earth elements; coal fly ash; atmospheric particulates; slurry sampling;
D O I：
10.1016/j.envpol.2006.12.004
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A method of fluorination assisted electrothermal vaporization (FETV)-ICP-MS with polytetrafluoroethylene as fluorinating reagent was developed for the direct determination of trace rare earth elements (REEs) in coal fly ash and atmospheric particulates. Under the optimal conditions, the detection limits for REEs were 0.1 pg m(-3)(Eu) to 6.7 Pg m(-3)(Nd) with the precisions of 4.1%(Yb) to 10%(La) (c = 1 mu g L-1, n = 9). The proposed method was applied to determine trace REEs in coal fly ash, airborne particulates and NIES SRM No. 8 Vehicle Exhaust Particulates. It was found that the determined values for Y, La, Pr and Nd obtained by slurry sampling FETV-ICP-MS with external calibration coincided with that obtained by pneumatic nebulization (PN)-ICP-MS and slurry sampling FETV-ICP-MS with standard addition. However, the determined values for Cc and Sm obtained by slurry sampling FETV-ICP-MS with external calibration were lower than that obtained by PN-ICP-MS and slurry sampling FETV-ICP-MS with standard addition. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：459 / 467
页数：9
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