Yuki Okada

发表

Micro-segmental hair analysis: detailed procedures and applications in forensic toxicology

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2022, Forensic Toxicology.

Measurement of three-dimensional distributions of drugs in nails using liquid chromatography/tandem mass spectrometry after micro-segmentation to elucidate drug uptake routes.

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2020, Analytica chimica acta.

Agonistic activity of fentanyl analogs and their metabolites on opioid receptors

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2021, Forensic Toxicology.

Evaluation of Agonistic Activity of Fluorinated and Nonfluorinated Fentanyl Analogs on μ-Opioid Receptor Using a Cell-Based Assay System.

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2021, Biological & pharmaceutical bulletin.

Degradation of 1-phenyl-2-propanone during long-term storage: useful information for methamphetamine impurity profiling

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2021, Forensic Toxicology.

Development of a handy microdiffusion device using two plastic test tubes for accurately quantifying cyanide in blood

H. Miyaguchi, Yuki Okada, 2020, Forensic Toxicology.

Thin-layer chromatography on silver nitrate-impregnated silica gel for analysis of homemade tetrahydrocannabinol mixtures

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2021, Forensic Toxicology.

Short-term stability of a small amount of neat Δ9-tetrahydrocannabinol

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2022, Forensic Toxicology.

Development of the “selective concentration” analytical method for drug-containing hair regions based on micro-segmental analysis to identify a trace amount of drug in hair: hair analysis following single-dose ingestion of midazolam

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2020, Forensic Toxicology.

Micro-segmental hair analysis: detailed procedures and applications in forensic toxicology

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2022, Forensic Toxicology.

Possibility of drug-distribution measurement in the hair of drowned bodies: evaluation of drug stability in water-soaked hair using micro-segmental analysis

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2022, International Journal of Legal Medicine.

Distribution profiles of diphenhydramine and lidocaine in scalp, axillary, and pubic hairs measured by micro-segmental hair analysis: good indicator for discrimination between administration and external contamination of the drugs

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2021, Forensic Toxicology.

Evaluation of applicability of micro-segmental analysis to hair treated with heat and haircare products.

K. Kuwayama, H. Miyaguchi, Tadashi Yamamuro, 2023, Forensic toxicology.

Detection and confirmation of the ring-opened carboxylic acid metabolite of a new synthetic opioid furanylfentanyl

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2020, Forensic Toxicology.

Analysis of highly potent synthetic opioid nitazene analogs and their positional isomers.

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2022, Drug testing and analysis.

Stereoselective analysis of ephedrine and its stereoisomers as impurities and/or by-products in seized methamphetamine by supercritical fluid chromatography/tandem mass spectrometry.

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2020, Forensic science international.

Formation of Oxazolidine Derivatives by Reaction with Ephedrines and Aldehyde Impurities in Ethyl Acetate.

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2021, Journal of chromatographic science.

Thermal decomposition of CBD to Δ9-THC during GC-MS analysis: A potential cause of Δ9-THC misidentification.

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2022, Forensic Science International.

Changes in methamphetamine impurity profiles induced by tert-butoxycarbonylation.

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2023, Journal of forensic sciences.

Rapid enantiomeric analysis of zopiclone in serum by supercritical fluid chromatography–tandem mass spectrometry

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2023, Journal of Forensic Sciences.

Identification of 1-(thiophene-2-carbonyl)-LSD from blotter paper falsely labeled “1D-LSD”

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2023, Forensic toxicology.

Evaluation of test performance of Simon's reagent and Marquis reagent for so-called Ecstasy tablets

K. Kuwayama, Tadashi Yamamuro, K. Tsujikawa, 2021 .