Capillary electrophoretic separation of chlorophenols using amperometric detection

Abdelkader Hilmi; John H.T. Luong; An Lac Nguyen

doi:10.1016/S0021-9673(96)00834-5

Capillary electrophoretic separation of chlorophenols using amperometric detection

Abdelkader Hilmi
, John H.T. Luong
, An Lac Nguyen

National Research Council of Canada

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

Abstract

A simple end-column amperometric detector, without a porous junction, was designed and attached to a capillary electrophoresis instrument to analyze eight mono-, di- and tri-chlorophenols. The platinum detecting electrode was modified by electrodeposition of tin, to enhance sensitivity as well as reduce electrode fouling owing to phenol oxidation. The modified electrode (0.127 mm in diameter) in combination with a 20 μm I.D. separation capillary yielded sharp peaks and enabled us to detect phenol at levels as low as 0.10 μM. Satisfactory separation of the eight chlorophenols was achieved by using a mixed buffer of phosphate-borate.

Original language	English
Pages (from-to)	259-268
Number of pages	10
Journal	Journal of Chromatography A
Volume	761
Issue number	1-2
DOIs	https://doi.org/10.1016/S0021-9673(96)00834-5
Publication status	Published - 14 Feb 1997
Externally published	Yes

Keywords

Amperometric detection
Chlorophenols
Detection, electrophoresis

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10.1016/S0021-9673(96)00834-5

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title = "Capillary electrophoretic separation of chlorophenols using amperometric detection",

abstract = "A simple end-column amperometric detector, without a porous junction, was designed and attached to a capillary electrophoresis instrument to analyze eight mono-, di- and tri-chlorophenols. The platinum detecting electrode was modified by electrodeposition of tin, to enhance sensitivity as well as reduce electrode fouling owing to phenol oxidation. The modified electrode (0.127 mm in diameter) in combination with a 20 μm I.D. separation capillary yielded sharp peaks and enabled us to detect phenol at levels as low as 0.10 μM. Satisfactory separation of the eight chlorophenols was achieved by using a mixed buffer of phosphate-borate.",

keywords = "Amperometric detection, Chlorophenols, Detection, electrophoresis",

author = "Abdelkader Hilmi and Luong, \{John H.T.\} and Nguyen, \{An Lac\}",

year = "1997",

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doi = "10.1016/S0021-9673(96)00834-5",

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T1 - Capillary electrophoretic separation of chlorophenols using amperometric detection

AU - Hilmi, Abdelkader

AU - Luong, John H.T.

AU - Nguyen, An Lac

PY - 1997/2/14

Y1 - 1997/2/14

N2 - A simple end-column amperometric detector, without a porous junction, was designed and attached to a capillary electrophoresis instrument to analyze eight mono-, di- and tri-chlorophenols. The platinum detecting electrode was modified by electrodeposition of tin, to enhance sensitivity as well as reduce electrode fouling owing to phenol oxidation. The modified electrode (0.127 mm in diameter) in combination with a 20 μm I.D. separation capillary yielded sharp peaks and enabled us to detect phenol at levels as low as 0.10 μM. Satisfactory separation of the eight chlorophenols was achieved by using a mixed buffer of phosphate-borate.

AB - A simple end-column amperometric detector, without a porous junction, was designed and attached to a capillary electrophoresis instrument to analyze eight mono-, di- and tri-chlorophenols. The platinum detecting electrode was modified by electrodeposition of tin, to enhance sensitivity as well as reduce electrode fouling owing to phenol oxidation. The modified electrode (0.127 mm in diameter) in combination with a 20 μm I.D. separation capillary yielded sharp peaks and enabled us to detect phenol at levels as low as 0.10 μM. Satisfactory separation of the eight chlorophenols was achieved by using a mixed buffer of phosphate-borate.

KW - Amperometric detection

KW - Chlorophenols

KW - Detection, electrophoresis

UR - https://www.scopus.com/pages/publications/0031567009

U2 - 10.1016/S0021-9673(96)00834-5

DO - 10.1016/S0021-9673(96)00834-5

M3 - Article

AN - SCOPUS:0031567009

SN - 0021-9673

VL - 761

SP - 259

EP - 268

JO - Journal of Chromatography A

JF - Journal of Chromatography A

IS - 1-2

ER -

Capillary electrophoretic separation of chlorophenols using amperometric detection

Abstract

Keywords

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