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| Determination of trace Pb(Ⅱ), Cd(Ⅱ) and Zn(Ⅱ) using differential pulse stripping voltammetry without Hg modification | |
| 引用本文： | LIN Qi,LIN HongMei,ZHANG YuanHui,RONG MingCong,KE HuiXian,TANG XinHua,CHEN Xi. Determination of trace Pb(Ⅱ), Cd(Ⅱ) and Zn(Ⅱ) using differential pulse stripping voltammetry without Hg modification[J]. 中国科学:化学(英文版), 2013, 56(12): 1749-1756. DOI: 10.1007/s11426-013-4922-9 |
| 作者姓名： | LIN Qi LIN HongMei ZHANG YuanHui RONG MingCong KE HuiXian TANG XinHua CHEN Xi |
| 作者单位： | Key Lab of Global Change and Marine-Atmospheric Chemistry, SOA;Third Institute of Oceanography, SOA;Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University;Xiamen Standard Scientific Instrument Co. Ltd. |
| 基金项目： | supported by the National Natural Scientific Foundation of China(21175112);the Fund of Key Laboratory of Global Change and Marine-Atmospheric Chemistry,SOA,(GCMAC 1204);the Fujian Key Projects of Science and Technology(2011YZ0001-1) |
| 摘 要： | In this work,we reported a simultaneous determination approach for Pb(II),Cd(II)and Zn(II)atμg L 1concentration levels using differential pulse stripping voltammetry on a bismuth film electrode(BiFE).The BiFE could be prepared in situ when the sample solution contained a suitable amount of Bi(NO)3,and its analytical performance was evaluated for the simultaneous determination of Pb(II),Cd(II)and Zn(II)in solutions.The determination limits were found to be 0.19μg L 1for Zn(II),and0.28μg L 1for Pb(II)and Cd(II),with a preconcentration time of 300 s.The BiFE approach was successfully applied to determine Pb(II),Cd(II)and Zn(II)in tea leaf and infusion samples,and the results were in agreement with those obtained using an atomic absorption spectrometry approach.Without Hg usage,the in situ preparation for BiFE supplied a green and acceptability sensitive method for the determination of the heavy metal ions. |
| 关 键 词： | bismuth film electrode differential pulse stripping voltammetry tea leaves tea infusion |
Determination of trace Pb(II), Cd(II) and Zn(II) using differential pulse stripping voltammetry without Hg modification |
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| Qi Lin,HongMei Lin,YuanHui Zhang,MingCong Rong,HuiXian Ke,XinHua Tang,Xi Chen. Determination of trace Pb(II), Cd(II) and Zn(II) using differential pulse stripping voltammetry without Hg modification[J]. Science China Chemistry, 2013, 56(12): 1749-1756. DOI: 10.1007/s11426-013-4922-9 | |
| Authors: | Qi Lin HongMei Lin YuanHui Zhang MingCong Rong HuiXian Ke XinHua Tang Xi Chen |
| Affiliation: | 1. Key Lab of Global Change and Marine-Atmospheric Chemistry, SOA, Xiamen, 361005, China 2. Third Institute of Oceanography, SOA, Xiamen, 361005, China 3. Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China 4. Xiamen Standard Scientific Instrument Co. Ltd., Xiamen, 361005, China |
| Abstract: | In this work, we reported a simultaneous determination approach for Pb(II), Cd(II) and Zn(II) at μg L?1 concentration levels using differential pulse stripping voltammetry on a bismuth film electrode (BiFE). The BiFE could be prepared in situ when the sample solution contained a suitable amount of Bi(NO)3, and its analytical performance was evaluated for the simultaneous determination of Pb(II), Cd(II) and Zn(II) in solutions. The determination limits were found to be 0.19 μg L?1 for Zn(II), and 0.28 μg L?1 for Pb(II) and Cd(II), with a preconcentration time of 300 s. The BiFE approach was successfully applied to determine Pb(II), Cd(II) and Zn(II) in tea leaf and infusion samples, and the results were in agreement with those obtained using an atomic absorption spectrometry approach. Without Hg usage, the in situ preparation for BiFE supplied a green and acceptability sensitive method for the determination of the heavy metal ions. |
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