A. Szewczuk, M. Wellman‐Bednawska
1978
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Quality indicators
Journal
Clinica chimica acta; international journal of clinical chemistry
Abstract
By the phthaloyl method less toxic and readily soluble gamma-L-glutamyl-p-aminobenzoic acid was synthesized. This substance was used as a substrate for gamma-glutamyltranspeptidase activity assay in blood serum and urine. Close correlation was shown between the results obtained with the new method and with the old one which used gamma-L-glutamyl-p-nitroanilide.