research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
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research Development of a New GC-MS/MS Method for the Determination of Metformin in Human Hair
A new method was created to measure metformin in hair, showing potential for monitoring treatment and medical investigations.
research Influence of Chemical Straightening on the Stability of Drugs of Abuse in Hair
Chemical hair straightening significantly reduces detectable drug levels in hair.
research Hair Analysis: Assessment of Homemade Hair Treatment Effects on Drug Concentrations in the Keratin Matrix
Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
research Improved Forensic Hair Evidence for Drugs of Abuse by Mass Spectrometry
Forensic hair analysis for drugs is now more reliable and accurate.
research High Resolution Full Scan Liquid Chromatography Mass Spectrometry Comprehensive Screening in Sports Antidoping Urine Analysis
The method effectively detects banned substances in urine for sports antidoping.
research Analytical Chemistry Studying Historical Pharmaceuticals and Health Care Formulations
Analytical chemistry helps understand the makeup and use of ancient medicines, but it's complex and challenging.
research A Review on Forensic Toxicological Analysis of Drugs in Hair Using Various Instrumental Techniques
Hair analysis is better than urine and blood for detecting past drug use.
research Workplace Drug Testing Using Hair Samples
Hair testing is a reliable method for detecting workplace drug use when done with proper sample preparation and confirmation.
research Human Hair: An Important Biological Matrix of Interest
Human hair is a significant sample for various tests in clinical, nutritional, archaeological, and forensic studies.
research Glossary
research Influence of the Cosmetic Treatment of Hair on Drug Testing
Cosmetic hair treatments like bleaching and dyeing reduce drug levels in hair samples.
research Tryptophan in Human Hair: Correlation with Pigmentation
Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
research UPLC-MS/MS Method for the Simultaneous Quantification of Caffeine and Illicit Psychoactive Drugs in Hair Using a Single-Step High-Speed Grinding Extraction – Insights into a Cut-Off Value for Caffeine Abuse
The conclusion is that a new method can measure caffeine and drugs in hair, finding caffeine abusers have 70 times more caffeine than normal, with a proposed cut-off value for abuse.
research A Panoramic Review on Ethnomedicinal, Therapeutic, Phytochemical, and Advance Attributes of the Genus Ziziphus Mill., Native to Pakistan
The review concludes that the Ziziphus species, especially jujube, may promote hair growth and have various health benefits, warranting more research.