title: Determination of nomifensine plasma concentrations: a comparison of radioimmunoassay and gas chromatography.
abstract: 1 A gas-liquid chromatography (g.l.c.) method for measurement of the antidepressant nomifensine was developed and compared for precision, accuracy, sensitivity and convenience with radioimmunoassay (RIA). 2 No significant difference was found between the two techniques for unconjugated nomifensine (y = 1.07x = 2.7; r = 0.996) or total nomifensine (y = 1.;02x + 0.02; r = 0.999). 3 RIA proved more sensitive than g.l.c. (detection limit of RIA being 1 microgram/l and g.l.c. 5 micrograms/l). 4 RIA was found to be a more convenient technique (up to 50 samples per day with RIA, and 16 samples with g.l.c.).
mesh_terms: D002849:Chromatography, Gas; D006801:Humans; D007546:Isoquinolines / Q000097:blood*; D009627:Nomifensine / Q000097:blood*; D011863:Radioimmunoassay
chemical_list: D007546:Isoquinolines; D009627:Nomifensine