| Cloud point extraction and flame atomic absorption spectrometry analysis of palladium, platinum, and gold ions from industrial polluted soil |
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| 作者姓名： | LIAN Yuanpei ZHEN Wei TAI Zhigang YANG Yaling SONG Jun LI Zonghao |
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| 作者单位： | [Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, China [1] Kunming Fruit Business and Economics Co., Ltd., Kunming 650106, China [2], Ltd., Kunming 650106, China |
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| 基金项目： | supported by the National Natural Science Foundation of China(No.20961012);the Medical Neurobiology Key Laboratory of Kunming University of Science and Technology,Basic and Applied Research Project in Yunnan Province(No.2008ZC082M);the Analysis and Testing Foundation of Kunming University of Science and Technology(No.2010121);Innovation Fund for Smalland Medium Technology Based Firms(No.11C26215305936);Natural and Science Foundation of Yunnan Province(No.2010ZC027);Focus Fund of Department of Education in Yunnan Province(No.2010Z016) |
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| 摘 要： | Cloud point extraction (CPE) with Tergitol TMN-6 was applied for the extraction of trace amounts of palladium (Pd(Ⅱ)),platinum (Pt(Ⅳ)),and gold (Au(Ⅲ)) in the soil of industrial sewage.Ammonium pyrolysine dithiocarbamate (APDC) was adopted as the chelating agent prior to CPE and then was detected by atomic absorption spectrometry (AAS).Different parameters such as the concentration of surfactants,chelating agent and salt,sample pH,equilibration temperature and time,centrifugation time and rates,and the effect of foreign ions were studied.Under optimum conditions,the low limits of detections are 1.4,2.8 and 1.2 ng.ml-1 and the enrichment factors are 21,12,and 24 for Pd(Ⅱ),Pt(Ⅳ),and Au(Ⅲ),respectively.The relative standard deviations vary from 0.6％ to 1.0％ (n=11).All correlation coefficients of the calibration curves are ＞0.9960.The proposed method was successfully applied for the determination of Pd(Ⅱ),Pt(Ⅳ),and Au(Ⅲ) in the real soil of industrial sewage samples.
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| 关 键 词： | cloud point extraction ammonium pyrolysine dithiocarbamate Tergitol TMN-6 Pd Pt Au atomic absorption spectrometry |
Cloud point extraction and flame atomic absorption spectrometry analysis of palladium, platinum, and gold ions from industrial polluted soil |
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| LIAN Yuanpei,ZHEN Wei,TAI Zhigang,YANG Yaling,SONG Jun,LI Zonghao.Cloud point extraction and flame atomic absorption spectrometry analysis of palladium, platinum, and gold ions from industrial polluted soil[J].Rare Metals,2012,31(5):512-516. |
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| Authors: | LIAN Yuanpei ZHEN Wei TAI Zhigang YANG Yaling SONG Jun LI Zonghao |
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| Affiliation: | 1. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650224, China
2. Kunming Fruit Business and Economics Co., Ltd., Kunming 650106, China |
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| Abstract: | Cloud point extraction (CPE) with Tergitol TMN-6 was applied for the extraction of trace amounts of palladium (Pd(II)), platinum (Pt(IV)), and gold (Au(III)) in the soil of industrial sewage. Ammonium pyrolysine dithiocarbamate (APDC) was adopted as the chelating agent prior to CPE and then was detected by atomic absorption spectrometry (AAS). Different parameters such as the concentration of surfactants, chelating agent and salt, sample pH, equilibration temperature and time, centrifugation time and rates, and the effect of foreign ions were studied. Under optimum conditions, the low limits of detections are 1.4, 2.8 and 1.2 ng·ml?1 and the enrichment factors are 21, 12, and 24 for Pd(II), Pt(IV), and Au(III), respectively. The relative standard deviations vary from 0.6% to 1.0% (n=11). All correlation coefficients of the calibration curves are >0.9960. The proposed method was successfully applied for the determination of Pd(II), Pt(IV), and Au(III) in the real soil of industrial sewage samples. |
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| Keywords: | cloud point extraction ammonium pyrolysine dithiocarbamate Tergitol TMN-6 Pd Pt Au atomic absorption spectrometry |
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