title: A simplified, one-step method for radiometric analysis of phenylethanolamine-N-methyltransferase in adrenal chromaffin cells.
mesh_terms: D000313:Adrenal Medulla / Q000201:enzymology*; D000818:Animals; D002417:Cattle; D002838:Chromaffin System / Q000201:enzymology*; D007553:Isotope Labeling; D010625:Phenylethanolamine N-Methyltransferase / Q000032:analysis*; D014316:Tritium
chemical_list: D014316:Tritium; D010625:Phenylethanolamine N-Methyltransferase