Optimization of the response of phosphate separated by capillary zone electrophoresis
- 1 January 1996
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Analytical Communications
- Vol. 33 (3) , 103-105
- https://doi.org/10.1039/ac9963300103
Abstract
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).Keywords
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