Field amplified polarity switching sample injection in capillary zone electrophoresis
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United States of America Patent
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Feb 18, 1992
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N/A
app pub date -
Nov 30, 1990
filing date -
Nov 30, 1990
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Expired
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Abstract
An improved electroinjection method of introducing a sample having positive and negative ions into a capillary column for CE or CZE process by introducing a short plug of a low concentration buffer before introducing the sample into the column which results in increasing amount of charged ions of the sample introduced in the capillary column due to increasing the electric field at the injection point. A method for efficiently introducing both positive and negative ions is also shown.
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