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Determination of impurities in K2Cr2O7 by an inductively coupled plasma spectrometer
Alternative TitleSpectrosc. Spectr. Anal.
Li, YP; Zhang, Y; Qi, T; Liu, KL
2004-11-01
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume24Issue:11Pages:1428-1431
AbstractThe trace elements Si, Al, Fe, Ca, Mn, Mg, and Cl in the K2Cr2O7 produced by chromate cleaner production were determined by a sequential inductively coupled plasma spectrometer in this paper. Matrix effect was studied and eliminated through matrix matching. The analytical conditions for the elements were optimized. Incident power of the RF generator was 0.95 W. Pressure of carrier gas flow was 0.13 MPa, and its flow rate was 1.2 L(.)min(-1). Auxiliary gas flow rate was 0.2 L(.)min(-1). The element Cl was indirectly determined by the method of AgCl precipitation. The ion Cl- can be completely precipitated in 6% nitric acid system, and then determined after keeping the solution at 50 degreesC for two hours. The recoveries of the studied impurities range from 95% to 104%, and the relative standard deviations are lower than 4% ( n = 10). Detection limits of these impurities are in a range 0.0001%-0.00001% (w/w). The analytical results of random samples agree well with the results using the standard-adding method, and the relative error varies from -4.27% to + 5.26%. The developed method has been applied to the determination of impurities in K2Cr2O7 product with satisfactory results.; The trace elements Si, Al, Fe, Ca, Mn, Mg, and Cl in the K2Cr2O7 produced by chromate cleaner production were determined by a sequential inductively coupled plasma spectrometer in this paper. Matrix effect was studied and eliminated through matrix matching. The analytical conditions for the elements were optimized. Incident power of the RF generator was 0.95 W. Pressure of carrier gas flow was 0.13 MPa, and its flow rate was 1.2 L(.)min(-1). Auxiliary gas flow rate was 0.2 L(.)min(-1). The element Cl was indirectly determined by the method of AgCl precipitation. The ion Cl- can be completely precipitated in 6% nitric acid system, and then determined after keeping the solution at 50 degreesC for two hours. The recoveries of the studied impurities range from 95% to 104%, and the relative standard deviations are lower than 4% ( n = 10). Detection limits of these impurities are in a range 0.0001%-0.00001% (w/w). The analytical results of random samples agree well with the results using the standard-adding method, and the relative error varies from -4.27% to + 5.26%. The developed method has been applied to the determination of impurities in K2Cr2O7 product with satisfactory results.
KeywordIcp-aes Matrix Match K2cr2o7 Indirect Determination
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordICP-AES ; FE ; MN ; CA ; MG ; ZN ; CU
WOS Research AreaSpectroscopy
WOS SubjectSpectroscopy
WOS IDWOS:000225661600042
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/4915
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Li, YP,Zhang, Y,Qi, T,et al. Determination of impurities in K2Cr2O7 by an inductively coupled plasma spectrometer[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2004,24(11):1428-1431.
APA Li, YP,Zhang, Y,Qi, T,&Liu, KL.(2004).Determination of impurities in K2Cr2O7 by an inductively coupled plasma spectrometer.SPECTROSCOPY AND SPECTRAL ANALYSIS,24(11),1428-1431.
MLA Li, YP,et al."Determination of impurities in K2Cr2O7 by an inductively coupled plasma spectrometer".SPECTROSCOPY AND SPECTRAL ANALYSIS 24.11(2004):1428-1431.
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