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Analytical performance characteristics of the separation of fluoride in toothpaste by capillary zone electrophoresis
Harakuwe, AH and Haddad, PR (1997) Analytical performance characteristics of the separation of fluoride in toothpaste by capillary zone electrophoresis. Analytical Communications, 34 (2). pp. 67-68. ISSN 1359-7337
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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 5–120 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).
|Journal or Publication Title:||Analytical Communications|
|Page Range:||pp. 67-68|
|Identification Number - DOI:||10.1039/A607317D|
© 1997 Royal Society of Chemistry
|Date Deposited:||13 Nov 2008 02:23|
|Last Modified:||18 Nov 2014 03:53|
|Item Statistics:||View statistics for this item|
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