Anodic Stripping Voltammetric Determination of Thallium(III) Using a TosflexMercury Film Electrode

Tsai Hwa Lu; I. Wen Sun

doi:10.1002/(SICI)1521-4109(199810)10:15<1052::AID-ELAN1052>3.0.CO;2-Z

Anodic Stripping Voltammetric Determination of Thallium(III) Using a TosflexMercury Film Electrode

Tsai Hwa Lu, I. Wen Sun

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

A Tosflex/mercury film electrode (TMFE) was prepared by spin-coating a solution of the perfluorinated anion exchange polymer Tosflex onto a glassy carbon electrode surface followed by electrodeposition of a mercury film on this electrode. This electrode was used for the determination of trace thallium(III) which was preconcentrated onto the TMFE as the [TICl₄)^- anion in a chloride medium by the anion-exchange feature of Tostlex and then determined by anodic square-wave stripping voltammetry (SWSV). Various parameters influencing the determination of thallium(III) were examined in detail. With 1 min accumulation, the analytical signal versus concentration dependence was linear from 0 to 80 ppb, and the detection limit was 0. 1 ppb. The modified electrode showed good resistance to interferences from surface-active compounds and common ions. For repetitive use, the TMFE surface could be easily regenerated by setting the electrode potential at -0.4 V for 30 s.

Original language	English
Pages (from-to)	1052-1056
Number of pages	5
Journal	Electroanalysis
Volume	10
Issue number	15
DOIs	https://doi.org/10.1002/(SICI)1521-4109(199810)10:15<1052::AID-ELAN1052>3.0.CO;2-Z
Publication status	Published - 1998 Nov

All Science Journal Classification (ASJC) codes

Analytical Chemistry
Electrochemistry

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10.1002/(SICI)1521-4109(199810)10:15<1052::AID-ELAN1052>3.0.CO;2-Z

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title = "Anodic Stripping Voltammetric Determination of Thallium(III) Using a TosflexMercury Film Electrode",

abstract = "A Tosflex/mercury film electrode (TMFE) was prepared by spin-coating a solution of the perfluorinated anion exchange polymer Tosflex onto a glassy carbon electrode surface followed by electrodeposition of a mercury film on this electrode. This electrode was used for the determination of trace thallium(III) which was preconcentrated onto the TMFE as the [TICl4)- anion in a chloride medium by the anion-exchange feature of Tostlex and then determined by anodic square-wave stripping voltammetry (SWSV). Various parameters influencing the determination of thallium(III) were examined in detail. With 1 min accumulation, the analytical signal versus concentration dependence was linear from 0 to 80 ppb, and the detection limit was 0. 1 ppb. The modified electrode showed good resistance to interferences from surface-active compounds and common ions. For repetitive use, the TMFE surface could be easily regenerated by setting the electrode potential at -0.4 V for 30 s.",

author = "Lu, {Tsai Hwa} and Sun, {I. Wen}",

year = "1998",

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doi = "10.1002/(SICI)1521-4109(199810)10:15<1052::AID-ELAN1052>3.0.CO;2-Z",

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T1 - Anodic Stripping Voltammetric Determination of Thallium(III) Using a TosflexMercury Film Electrode

AU - Lu, Tsai Hwa

AU - Sun, I. Wen

PY - 1998/11

Y1 - 1998/11

N2 - A Tosflex/mercury film electrode (TMFE) was prepared by spin-coating a solution of the perfluorinated anion exchange polymer Tosflex onto a glassy carbon electrode surface followed by electrodeposition of a mercury film on this electrode. This electrode was used for the determination of trace thallium(III) which was preconcentrated onto the TMFE as the [TICl4)- anion in a chloride medium by the anion-exchange feature of Tostlex and then determined by anodic square-wave stripping voltammetry (SWSV). Various parameters influencing the determination of thallium(III) were examined in detail. With 1 min accumulation, the analytical signal versus concentration dependence was linear from 0 to 80 ppb, and the detection limit was 0. 1 ppb. The modified electrode showed good resistance to interferences from surface-active compounds and common ions. For repetitive use, the TMFE surface could be easily regenerated by setting the electrode potential at -0.4 V for 30 s.

AB - A Tosflex/mercury film electrode (TMFE) was prepared by spin-coating a solution of the perfluorinated anion exchange polymer Tosflex onto a glassy carbon electrode surface followed by electrodeposition of a mercury film on this electrode. This electrode was used for the determination of trace thallium(III) which was preconcentrated onto the TMFE as the [TICl4)- anion in a chloride medium by the anion-exchange feature of Tostlex and then determined by anodic square-wave stripping voltammetry (SWSV). Various parameters influencing the determination of thallium(III) were examined in detail. With 1 min accumulation, the analytical signal versus concentration dependence was linear from 0 to 80 ppb, and the detection limit was 0. 1 ppb. The modified electrode showed good resistance to interferences from surface-active compounds and common ions. For repetitive use, the TMFE surface could be easily regenerated by setting the electrode potential at -0.4 V for 30 s.

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U2 - 10.1002/(SICI)1521-4109(199810)10:15<1052::AID-ELAN1052>3.0.CO;2-Z

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VL - 10

SP - 1052

EP - 1056

JO - Electroanalysis

JF - Electroanalysis

IS - 15

ER -

Anodic Stripping Voltammetric Determination of Thallium(III) Using a TosflexMercury Film Electrode

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