A liquid chromatographic method for the simultaneous determination of promethazine and three of its metabolites in plasma using electrochemical and UV detectors.
Vanapalli SR, Kambhampati SP, Putcha L, Bourne DW. A liquid chromatographic method for the simultaneous determination of promethazine and three of its metabolites in plasma using electrochemical and UV detectors. J Chromatogr Sci. 2001 Feb; 39(2):70-2.