Development and validation of capillary electrophoresis for the determination of selected metal ions in airborne particulate matter after sequential extraction

A capillary electrophoresis (CE) method has been developed and validated for the determination of the distribution of metals in particulate matter after three-stage sequential extraction. Fe(II), Zn(II), Cu(II), Mn(II), and Cd(II) ions were separated using a background electrolyte consisting of 200...

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Bibliographic Details
Published in:Analytical and bioanalytical chemistry 2002-02, Vol.372 (3), p.467-472
Main Authors: Dabek-Zlotorzynska, Ewa, Aranda-Rodriguez, Rocio, Buykx, Susan E J
Format: Article
Language:English
Subjects:
Air Pollutants - chemistry
Electrophoresis, Capillary - methods
Humans
Metals, Heavy - analysis
Particle Size
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Summary:A capillary electrophoresis (CE) method has been developed and validated for the determination of the distribution of metals in particulate matter after three-stage sequential extraction. Fe(II), Zn(II), Cu(II), Mn(II), and Cd(II) ions were separated using a background electrolyte consisting of 200 mmol L(-1) ammonium acetate (pH 5.5), 0.5 mmol L(-1) 1,10-phenanthroline, 10 mmol L(-1) hydroxylamine hydrochloride, and 20% acetone. The method was validated with respect to specificity, linearity, detection limits, precision, and accuracy. Detection limits are at sub-microg L(-1) levels (tens of microg g(-1) of particulate matter) using pressure injection. The analytical procedure was checked by analyzing a standard reference material, NIST SRM 1648 Urban Particulate Matter.
ISSN:1618-2642
1618-2650
DOI:10.1007/s00216-001-1114-9