Aptamer affinity chromatography for rapid assay of adenosine in microdialysis samples collected in vivo.

Abstract

An anti-adenosine aptamer was evaluated as a stationary phase in packed capillary liquid chromatography. Using an aqueous mobile phase containing 20 mM Mg2+, adenosine was strongly retained on the column. A gradient of increasing Ni2+ (to 18 mM), which is presumed to complex with nitrogen atoms in adenosine involved in binding to the aptamer, eluted… (More)

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