High-performance liquid chromatography study on effects of permanent wave,dye and decolorant treatments on methamphetamine and amphetamine in hair

Black hairs that had been removed from a methamphetamine (MA) addict were t reated with permanent wave, dye or decolorant liquids, and MA and amphetami ne (AP) were quantified by a high-performance liquid chromatography/chemilu minescence detection method The concentrations of MA and AP in the hair dec reased significantly in all cases. Both MA and AP were stable in the perman ent wave treatments, but not stable in the dye or decolorant treatments. As possible reasons for the decrease, the elution of MA and AP from hair in t he permanent wave treatment, and the degradation of MA and AP in the dye or decolorant treatments might be considered. These results suggested that tr eatments of hair with permanent wave, dye or decolorant liquids interfered with determination of MA and AP in hair. Copyright (C) 1999 John Wiley & So ns, Ltd.