2006
DOI: 10.1016/j.forsciint.2006.03.031
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The study of metabolite-to-parent drug ratios of methamphetamine and methylenedioxymethamphetamine in hair

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Cited by 38 publications
(33 citation statements)
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“…We divided six groups based on MA concentrations in hair (n = 2389), and investigated the relationship between MA concentrations and AM/MA ratios. There was a statistically significant difference among six range groups, namely, in groups of higher MA concentrations, lower ratios of AM/MA were found [7]. In this study, we also investigated the relationship between MA concentrations and AM/MA ratios in hair.…”
Section: Ma and Am Concentrations In Hair Samplesmentioning
confidence: 86%
See 2 more Smart Citations
“…We divided six groups based on MA concentrations in hair (n = 2389), and investigated the relationship between MA concentrations and AM/MA ratios. There was a statistically significant difference among six range groups, namely, in groups of higher MA concentrations, lower ratios of AM/MA were found [7]. In this study, we also investigated the relationship between MA concentrations and AM/MA ratios in hair.…”
Section: Ma and Am Concentrations In Hair Samplesmentioning
confidence: 86%
“…In former study [7], we determined the AM/MA ratios in the hair of 2444 MA abusers, reported the AM/MA ratios ranged 0.004-1.16 (ave. 0.09). We divided six groups based on MA concentrations in hair (n = 2389), and investigated the relationship between MA concentrations and AM/MA ratios.…”
Section: Ma and Am Concentrations In Hair Samplesmentioning
confidence: 99%
See 1 more Smart Citation
“…25−193.75 ng/mg at the high end (n = 114). Every range was associated with AM concentrations exceeding 2.0 ng/ mg [30]. In the second study, researchers divided a sample of hair-test results (n = 2355) into "low, medium and high ranges," defined by various percentiles of MA concentrations with corresponding AM values.…”
Section: Methodsmentioning
confidence: 99%
“…Nevertheless, the protocol's AM LOD would have failed to corroborate a majority of MA positives. Further, this protocol's AM LOQ would have been sensitive enough to provide data for the calculation of only a small percentage of AM/MA ratios, which can be a useful diagnostic tool for interpreting original MA dosages, the possibility of sample contamination, and the independent use of AM [30][31][32].…”
Section: Methodsmentioning
confidence: 99%