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Simultaneous Determination of Impurities in K2CrO4 by ICP-AES
Yu Zhi-hui1,2; Qi Tao1; Qu Jing-kui1; Chu Jing-long1; Wang Li-na1; Qi, T
AbstractThe trace elements, Ca, Mg, Ba, Co, Cd, Cu, Mn, Pb, Sr, Zn, Al, Fe, Ni, Ti, Si and V, in K2CrO4 were simultaneously determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Optimum spectral lines were selected for each analyzed element. The matrix effect was studied and eliminated through matrix matching. The results show that the linear correlations of standard curves are good (R-2 = 0.9986-1.000) under the determined conditions. The recoveries of standard addition are in the range of 83.7%-113.0%, and the relative standard deviations are lower than 9.48%(n=9). Detection limits of these impurities are in the range of 0.075-2.625 The method is rapid, simple, accurate and credible, so it can be used for the determination of impurities in K2CrO4 product. The results also show that there is relatively high content of Ca. Mg, Al and Si in K2CrO4 product, so the K2CrO4 product can't be directly used for the ion membrane electrochemical synthesis of chromic anhydride and the product must be taken for further purification.
KeywordK2cro4 Matrix Match Trace Elements Icp-aes
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000269998800054
Citation statistics
Document Type期刊论文
Corresponding AuthorQi, T
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu Zhi-hui,Qi Tao,Qu Jing-kui,et al. Simultaneous Determination of Impurities in K2CrO4 by ICP-AES[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2009,29(8):2250-2253.
APA Yu Zhi-hui,Qi Tao,Qu Jing-kui,Chu Jing-long,Wang Li-na,&Qi, T.(2009).Simultaneous Determination of Impurities in K2CrO4 by ICP-AES.SPECTROSCOPY AND SPECTRAL ANALYSIS,29(8),2250-2253.
MLA Yu Zhi-hui,et al."Simultaneous Determination of Impurities in K2CrO4 by ICP-AES".SPECTROSCOPY AND SPECTRAL ANALYSIS 29.8(2009):2250-2253.
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