Jump to main content
Jump to site search

Issue 2, 1997
Previous Article Next Article

Analytical Performance Characteristics of the Separation of Fluoride in Toothpaste by Capillary Zone Electrophoresis

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 5–120 µg ml - 1 of fluoride and using this curve, one toothpaste sample was determined to have about 12 µg ml - 1 (≈0.1% m/m undried basis) of fluoride. The limit of detection was 0.5 µg ml - 1 (3 × baseline noise) and the mean recovery was 106% (n = 10).

Back to tab navigation

Article type: Paper
DOI: 10.1039/A607317D
Anal. Commun., 1997,34, 67-68

  •   Request permissions

    Analytical Performance Characteristics of the Separation of Fluoride in Toothpaste by Capillary Zone Electrophoresis

    A. H. Harakuwe and P. R. Haddad, Anal. Commun., 1997, 34, 67
    DOI: 10.1039/A607317D

Search articles by author

Spotlight

Advertisements