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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, vol. 33, no. 3 , pp. 103-105 , doi: 10.1039/AC9963300103.

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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
Authors/Creators:Harakuwe, AH and Haddad, PR
Journal or Publication Title: Analytical Communications
ISSN: 1359-7337
DOI / ID Number: 10.1039/AC9963300103
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© 1996 Royal Society of Chemistry

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