Title: Multi-compound electrophoretic assays for tyramine oxidase with a UV area detector imaging multiple windows on a looped capillary
Authors: Urban, Pawel L ×
Goodall, David M
Carvalho, Alexandre Z
Bergström, Edmund T
Van Schepdael, Ann
Bruce, Neil C #
Issue Date: Oct-2008
Series Title: Journal of Chromatography A vol:1206 issue:1 pages:52-63
Abstract: Active pixel sensor UV area imaging and capacitively coupled contactless conductivity detection have been applied in an electrophoretically mediated microanalysis (EMMA) assay for substrate specificity of tyramine oxidase (Arthrobacter sp.). Use of the UV area imaging detector to monitor four windows in a capillary with three loops provided intrinsic self-referencing for all species and identified tyramine and 2-phenethylamine as the only reactive components in a multi-compound mixture. Continuous engagement EMMA experiments showed significant benefits by comparison with plug-plug EMMA, improving sensitivity by extending enzyme-substrate interaction times and allowing measurement of time-dependent reaction in the substrate zones passing the four windows.
ISSN: 0021-9673
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Pharmaceutical Analysis
× corresponding author
# (joint) last author

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