Capillary electrophoresis technique
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United States of America Patent
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Dec 22, 1992
Grant Date -
N/A
app pub date -
Jan 11, 1990
filing date -
Jan 11, 1990
priority date (Note) -
Expired
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Abstract
To inject sample into an electrophoresis capillary tube having a separating medium, the end of the capillary tube is inserted in an injection block with a liquid tight seal and a syringe is inserted into the block to apply fluid to the end of the capillary tube. The injection block provides split flow injection. A high voltage isolated switching arrangement switches the end of the capillary from the injection block to buffer at a high electrical potential to accomplish the electrophoretic separation. A second injection block is used to purge the capillary tube and can be used to supply separating medium as needed.
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