Kenji Tsujikawa

Kashiwa, Japan

Last Updated: 09/26/2026

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Found 83 publications

Synthesis and Analytical Characterization of 1-(1,2-Dimethylcyclobutane-1-Carbonyl)-Lysergic Acid Diethylamide (1D-LSD) and Differentiation From 1-(Thiophene-2-Carbonyl)-LSD (1T-LSD).

Synthesis and Analytical Characterization of 1-(1,2-Dimethylcyclobutane-1-Carbonyl)-Lysergic Acid Diethylamide (1D-LSD) and Differentiation From 1-(Thiophene-2-Carbonyl)-LSD (1T-LSD).

Journal: Drug testing and analysis

Published: July 06, 2026

Development of a similarity discrimination method for cannabis samples using Inter-Simple Sequence Repeat-PCR.

Development of a similarity discrimination method for cannabis samples using Inter-Simple Sequence Repeat-PCR.

Journal: Forensic toxicology

Published: February 18, 2026

High-throughput measurement for micro-segmental hair analysis using parallel column regeneration in liquid chromatography/tandem mass spectrometry.

High-throughput measurement for micro-segmental hair analysis using parallel column regeneration in liquid chromatography/tandem mass spectrometry.

Journal: Forensic toxicology

Published: December 29, 2025

Rapid semi-quantitative estimation of cocaine purity by infrared absorption spectroscopy and Raman spectroscopy combined with multivariate analysis.

Rapid semi-quantitative estimation of cocaine purity by infrared absorption spectroscopy and Raman spectroscopy combined with multivariate analysis.

Journal: Forensic toxicology

Published: December 22, 2025

Development of a novel isolation method for Δ9-tetrahydrocannabinolic acid-A from cannabis suitable for forensic laboratories.

Development of a novel isolation method for Δ9-tetrahydrocannabinolic acid-A from cannabis suitable for forensic laboratories.

Journal: Forensic toxicology

Published: June 23, 2025

Development of a novel Δ9-THC-specific color test reagent.

Development of a novel Δ9-THC-specific color test reagent.

Journal: Forensic toxicology

Published: February 27, 2025

Preparation of highly concentrated extracts from large volume of urine as the first step in detecting trace amounts of hypnotics in urine collected in drug-facilitated crime cases.

Preparation of highly concentrated extracts from large volume of urine as the first step in detecting trace amounts of hypnotics in urine collected in drug-facilitated crime cases.

Journal: Forensic toxicology

Published: February 12, 2025

Cross-reactivity of the epimers of 11-nor-9-carboxy-hexahydrocannabinol, metabolites of hexahydrocannabinol, with panel tests for urinary Δ9-tetrahydrocannabinol metabolites.

Cross-reactivity of the epimers of 11-nor-9-carboxy-hexahydrocannabinol, metabolites of hexahydrocannabinol, with panel tests for urinary Δ9-tetrahydrocannabinol metabolites.

Journal: Forensic toxicology

Published: December 05, 2024

Effects of natural environments on drug contents in nails: comparison of drug residual rates between nails and hair to determine the drug-use history of corpses in unnatural death cases using micro-segmental analysis.

Effects of natural environments on drug contents in nails: comparison of drug residual rates between nails and hair to determine the drug-use history of corpses in unnatural death cases using micro-segmental analysis.

Journal: Forensic toxicology

Published: July 01, 2024

Synthesis and analytical characterization of 1-(2-thienoyl)-6-allyl-nor-d-lysergic acid diethylamide (1T-AL-LAD).

Synthesis and analytical characterization of 1-(2-thienoyl)-6-allyl-nor-d-lysergic acid diethylamide (1T-AL-LAD).

Journal: Drug testing and analysis

Published: April 05, 2024

Metabolism of highly potent synthetic opioid nitazene analogs: N-ethyl-N-(1-glucuronyloxyethyl) metabolite formation and degradation to N-desethyl metabolites during enzymatic hydrolysis.

Metabolism of highly potent synthetic opioid nitazene analogs: N-ethyl-N-(1-glucuronyloxyethyl) metabolite formation and degradation to N-desethyl metabolites during enzymatic hydrolysis.

Journal: Drug testing and analysis

Published: March 14, 2024

Development of a simple estimation method of serum caffeine concentration using a point-of-care test kit for urinary caffeine.

Development of a simple estimation method of serum caffeine concentration using a point-of-care test kit for urinary caffeine.

Journal: Forensic toxicology

Published: March 13, 2024

Showing 1-12 of 83

Last Updated: 09/26/2026