%0 Journal Article %T Use of alumina columns to prepare plasma samples for liquid-chromatographic determination of catecholamines. %A Maycock, P, F %A Frayn, K, N %J Clinical Chemistry %V 33 %N 2 %P 286-287 %@ 0009-9147 %D 1987-02-01 %I Oxford Academic %~ DeepDyve