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Optimization of the response of phosphate separated by capillary zone electrophoresis


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Harakuwe, AH and Haddad, PR (1996) Optimization of the response of phosphate separated by capillary zone electrophoresis. Analytical Communications, 33 (3). pp. 103-105. ISSN 1359-7337

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The response of phosphate, which is highly variable in capillary zone electrophoresis (CZE) using silica capillaries, was optimized by monitoring the absorption of phosphate onto the capillary surface. A capillary conditioning regime is described which facilitates maximum response for phosphate without significantly extending the total analysis time. The described regime also allowed excellent precision (?0.36%sr, n= 10) to be achieved with regard to absolute migration time for phosphate as well as chloride, bromide, sulfate and hydrogencarbonate. Using this regime, the precisions for the phosphate peak area and height were 9 and 5.5%sr, respectively (n= 10).

Item Type: Article
Journal or Publication Title: Analytical Communications
Page Range: pp. 103-105
ISSN: 1359-7337
Identification Number - DOI: 10.1039/AC9963300103
Additional Information:

© 1996 Royal Society of Chemistry

Date Deposited: 13 Nov 2008 05:26
Last Modified: 18 Nov 2014 03:53
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