Determination of impurities in K2Cr2O7 by an inductively coupled plasma spectrometer
文献类型：期刊论文
| 作者 | Li, YP; Zhang, Y; Qi, T; Liu, KL |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2004-11-01 |
| 卷号 | 24期号:11页码:1428-1431 |
| 关键词 | ICP-AES matrix match K2Cr2O7 indirect determination |
| ISSN号 | 1000-0593 |
| 其他题名 | Spectrosc. Spectr. Anal. |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 关键词[WOS] | ICP-AES ; FE ; MN ; CA ; MG ; ZN ; CU |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000225661600042 |
| 公开日期 | 2013-11-05 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4915]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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