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Analytical performance characteristics of the separation of fluoride in toothpaste by capillary zone electrophoresis

Citation

Harakuwe, AH and Haddad, PR, Analytical performance characteristics of the separation of fluoride in toothpaste by capillary zone electrophoresis, Analytical Communications, 34, (2) pp. 67-68. ISSN 1359-7337 (1997) [Refereed Article]


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Copyright Statement

Copyright 1997 Royal Society of Chemistry

Official URL: http://www.rsc.org

DOI: doi:10.1039/A607317D

Abstract

The analytical performance characteristics of the separation by CZE of fluoride in toothpaste using a chromate-based electrolyte is discussed. Good precisions (n = 5) were recorded for absolute migration time (1.7% RSD), peak area (0.8% RSD) and peak height (0.4% RSD). Fluoride was separated in under 4 min without matrix interference or co-migration with phosphate (resolution ca. 8). The peak area calibration curve was linear between 5120 g ml-1 of fluoride and using this curve, one toothpaste sample was determined to have about 12 g ml-1 (0.1% m/m undried basis) of fluoride. The limit of detection was 0.5 g ml-1 (3 baseline noise) and the mean recovery was 106% (n = 10).

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Instrumental Methods (excl. Immunological and Bioassay Methods)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Harakuwe, AH (Mr Anthony Hekare Harakuwe)
Author:Haddad, PR (Professor Paul Haddad)
ID Code:12272
Year Published:1997
Web of Science® Times Cited:9
Deposited By:Chemistry
Deposited On:1997-08-01
Last Modified:2010-10-10
Downloads:1 View Download Statistics

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