Specimen collection and procedures , Stability of drugs in hair
المؤلف:
Sue Jickells , Adam Negrusz (Editors)
المصدر:
Clarkes Analytical Forensic Toxicology
الجزء والصفحة:
156
2026-10-04
159
Specimen collection and procedures
Stability of drugs in hair
The presence of opiates was detected in five hair shafts (about 7.5 cm in length) from the Victorian poet John Keats 167 years after his death (Baumgartner et al. 1989). It is believed he took laudanum (opium) to control the pain of tuberculosis. The scalps of eight Chilean and Peruvian mummies dating from 2000 BC to AD 1500 also tested positive for benzoylecgonine (Cartmell et al. 1991). All these studies indicate that drug incorporation is very stable in hair and that modern medical technology can assist other disciplines. Clearly, organic substances are able to survive in hair for thousands of years under favourable conditions (ambient temperature, dry atmosphere).
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