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

Abstract

Black hairs that had been removed from a methamphetamine (MA) addict were treated with permanent wave, dye or decolorant liquids, and MA and amphetamine (AP) were quantified by a high-performance liquid chromatography/chemiluminescence detection method. The concentrations of MA and AP in the hair decreased significantly in all cases. Both MA and AP were stable in the permanent 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 the permanent wave treatment, and the degradation of MA and AP in the dye or decolorant treatments might be considered. These results suggested that treatments of hair with permanent wave, dye or decolorant liquids interfered with determination of MA and AP in hair.

Racial and Ethnic Diversity Among a Heroin and Cocaine Using Population

“…[19][20][21][22][23][24][25][26][27] We believe that this is not the case. All hair samples were washed to remove externally deposited drugs using special techniques developed by Psychomedics ® .…”

Determination of methamphetamine enantiomer composition in human hair by non-chiral liquid chromatography–tandem mass spectrometry method

“…Analyte concentrations in hair do not retrospectively indicate neither when the last drug use took place, nor the frequency of use and the dosage of drug [31]. Furthermore, other factors complicate the interpretation of drug concentration found in hair: 1) drug deposition in hair is colorbiased [32]; 2) drug deposited in hair slowly leaches out by personal daily hygiene habits; and 3) drug can potentially be chemically modified by cosmetic treatments [33,34]. Hair porosity also plays an important role.…”

Hair analysis and self-report of methamphetamine use by methamphetamine dependent individuals

“…7 had her hair cosmetically treated 2 days before collecting hair samples. The drug concentrations in hair have limitations resulting from cosmetic treatment of hair such as permanent waving, coloring or bleaching [4,33,[49][50][51]. Nadulski and Pragst reported a similar subject with a red dyed hair sample and there was a decline in drug concentrations due to repeated aggressive hair cosmetics [52].…”