Standard Addition Determination of Impurities in Na2CrO4 by ICP-AES

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	Standard Addition Determination of Impurities in Na2CrO4 by ICP-AES
	Wang Li-ping 1,2; Feng Hai-tao1 ; Dong Ya-ping1 ; Peng Jiao-yu1,2 ; Li Wu 1; Shi Hai-qin 3; Wang Yong 4
	2015-02-01
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
卷号	35 期号:2 页码:523-526
关键词	Sodium Chromate Trace Impurities Icp-aes Standard Addition Method
摘要	Coupled plasma atomic emission spectrometry (ICP-AES) was used to determine the trace impurities of Ca, Mg, Al, Fe and Si in industrial sodium chromate. Wavelengths of 167. 079, 393. 366, 259. 940, 279. 533 and 251. 611 nm were selected as analytical lines for the determination of Al, Ca, Fe, Mg and Si, respectively. The analytical errors can be eliminated by adjusting the determined solution with high pure hydrochloric acid. Standard addition method was used to eliminate matrix effects. The linear correlation, detection limit, precision and recovery for the concerned trace impurities have been examined. The effect of standard addition method on the accuracy for the determination under the selected analytical lines has been studied in detail. The results show that the linear correlations of standard curves were very good (R-2 =0. 998 8 to 0. 999 6) under the determined conditions. Detection limits of these trace impurities were in the range of 0. 013 4 to 0. 028 0 mg . L-1 Sample recoveries were within 97. 30% to 107. 50%, and relative standard deviations were lower than 5. 86% for eleven repeated determinations. The detection limits and accuracies established by the experiment can meet the analytical requirements and the analytic procedure was used to determine trace impurities in sodium chromate by ion membrane electrolysis technique successfully. Due to sodium chromate can be changed into sodium dichromate and chromic acid by adding acids, the established method can be further used to monitor trace impurities in these compounds or other hexavalent chromium compounds.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5740
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所盐湖资源综合利用工程技术中心
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qinghai Chromate Hightech Co Ltd, Xining 810014, Peoples R China 4.Tianjin Paisen Technol Co Ltd, Tianjin 301700, Peoples R China
推荐引用方式 GB/T 7714	Wang Li-ping,Feng Hai-tao,Dong Ya-ping,et al. Standard Addition Determination of Impurities in Na2CrO4 by ICP-AES[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(2):523-526.
APA	Wang Li-ping.,Feng Hai-tao.,Dong Ya-ping.,Peng Jiao-yu.,Li Wu.,...&Wang Yong.(2015).Standard Addition Determination of Impurities in Na2CrO4 by ICP-AES.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(2),523-526.
MLA	Wang Li-ping,et al."Standard Addition Determination of Impurities in Na2CrO4 by ICP-AES".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.2(2015):523-526.