“…Gas chromatographic, HPLC, spectrophotometric, radioimmunoassay, capillary electrophoresis and CL methods have been applied to the analysis of this compound (36)(37)(38)(39)(40)(41)(42)(43)(44)(45)]. Recently, an LC-MS-MS method, using 2-acetamidophenol as an internal standard, was reported for the determination of CPA (46). A micellar liquid chromatography and an ion-pairing RP-HPLC method were also applied to analysis of CPA (39).…”