research Gas Chromatography Tandem Mass Spectrometry for Biomarkers of Alcohol Abuse in Human Hair 18 citations , March 2010 in “Therapeutic Drug Monitoring” A new method quickly detects alcohol use from hair in under an hour.
research Phytochemical analyses of Ziziphus jujuba Mill. var. spinosa seed by ultrahigh performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry 38 citations , January 2013 in “Analyst” The study found that Ziziphus jujuba seeds contain beneficial compounds for treating insomnia and anxiety and that the methods used are effective for assessing their quality.
research Assessment of Circulating Sex Steroid Levels in Prepubertal and Pubertal Boys and Girls by a Novel Ultrasensitive Gas Chromatography-Tandem Mass Spectrometry Method 169 citations , November 2009 in “The Journal of Clinical Endocrinology & Metabolism” Prepubertal girls have higher sex steroid levels than boys, possibly leading to earlier puberty.
research Sex steroid levels in corresponding cerebrospinal fluid and serum samples quantified by mass spectrometry in men 1 citations , November 2023 in “Endocrine Connections” DHEA is the main sex steroid in cerebrospinal fluid, and testosterone in the fluid comes from the blood.
research Segmental Hair Analysis for 11-Nor- 9-Tetrahydrocannabinol-9-Carboxylic Acid and the Patterns of Cannabis Use 30 citations , March 2012 in “Journal of Analytical Toxicology” THCCOOH levels in hair decrease from root to tip and don't match well with self-reported cannabis use.