[1] Guo Huishi, Xiao Pengfeng, Nie Libo, Li Yiheng, et al. Determination of trace amount of antimony(Ⅲ)by adsorptionvoltammetry on carbon paste electrode [J]. Journal of Southeast University (English Edition), 2004, 20 (2): 221-225. [doi:10.3969/j.issn.1003-7985.2004.02.020]
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Determination of trace amount of antimony(Ⅲ)by adsorptionvoltammetry on carbon paste electrode(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 20
- Issue:
- 2004 2
- Page:
- 221-225
- Research Field:
- Chemistry and Chemical Engineering
- Publishing date:
- 2004-06-30
Info
- Title:
- Determination of trace amount of antimony(Ⅲ)by adsorptionvoltammetry on carbon paste electrode
- Author(s):
- Guo Huishi1; Xiao Pengfeng1; Nie Libo1; Li Yiheng2; He Nongyue1
-
1Chien-Shiung Wu Laboratory, Southeast University, Nanjing 210096, China
2Department of Chemistry, Xiangtan University, Xiangtan 411105, China
- PACS:
- O657.4
- DOI:
- 10.3969/j.issn.1003-7985.2004.02.020
- Abstract:
- A sensitive method is described for the determination of trace antimony based on the antimony-bromopyrogallol red(BPR)adsorption at a carbon paste electrode(CPE). Three steps were involved in the overall analysis: preconcentration, reduction and stripping. Optimal conditions were found to be an electrode containing 25% paraffin oil and 75% high purity graphite powder as working electrode; a 0. 10 mol/L HCl solution containing 40 μmol/L BPR as accumulation medium; a 0. 20 mol/L HCl solution as reduction and stripping electrolyte; accumulation time, 150 s; reduction potential and time, -0. 50 V, 60 s; scan range from -0. 50 to 0. 20 V. Interferences by other ions were studied as well. The detection limit was found to be 0. 5 nmol/L for 150 s preconcentration. The linear range was from 1. 0 nmol/L to 0. 50 μmol/L. Application of the proposed method to the determination of antimony in water and human hair samples gave good results.
References:
[1] Kubota T, Kawakami A, Sagara T, et al. Determination of antimony content in natural water by graphite furnace atomic absorption spectrometry after collection as antimony(Ⅲ)-pyrogallol complex on activated carbon [J]. Talanta, 2001, 53: 1117-1126.
[2] Deng Tianlong, Chen Yuwei, Belzile N. Antimony speciation at ultra trace levels using hydride generation atomic fluorescence spectrometry and 8-hydroxyquinoline as an efficient masking agent [J]. Anal Chim Acta, 2001, 432: 293-302.
[3] Quentel F, Filella M. Determination of inorganic antimony species in seawater by differential pulse anodic stripping voltammetry: stability of the trivalent state [J]. Anal Chim Acta, 2002, 452: 237-244.
[4] Tanaka T, Ishiyama T, Okamoto K. Determination antimony in steel by differential pulse anodic stripping voltammetry at a rotating gold film electrode [J]. Anal Sci, 2000, 16: 19-23.
[5] Mousavi M F, Rahmani A, Golabi S M, et al. Differential pulse anodic stripping voltammetric determination of lead(II)with a 1, 4-bis(prop-2’-enyloxy)-9, 10-anthraquinone modified carbon paste electrode [J]. Talanta, 2001, 55: 305-312.
[6] Abbaspour A, Moosavi S M M. Chemically modified carbon paste electrode for determination of copper(II)by potentiometric method [J]. Talanta, 2002, 56: 91-96.
[7] Guo Huishi, Li Yiheng, Xie Hongqi. Determination of trace amount of antimony by adsorptive stripping voltammetry with pyrogallol red modified carbon paste electrode [J]. Journal of Xiangtan University(Natural Science Edition), 2001, 23(1): 68-71.(in Chinese)
[8] Wei Xianyou, Tan Jianxin. Polarographic adsorptive complex catalytic wave of antimony(Ⅲ)and tin(IV)with 7-iodo-8-hydroxyquinolin-5-sulfonic acid(Ferron)and its application [J]. Chinese Journal of Analysis Laboratory, 1996, 15(3): 58-61.(in Chinese)
[9] Zhang Xiaoli, Ma Chengsong, Wang Lizeng, et al. Trace adsorptive voltammetric determination of antimony in hair [J]. Talanta, 1995, 42: 897-900.
Memo
- Memo:
- Biographies: Guo Huishi(1972—), male, graduate; He Nongyue(corresponding author), male, doctor, professor, nyhe1958@163.com.