Wing-chi Cheng

88 Chung Hau Street, Homantin Government Offices, Homantin, Hong Kong Special Administrative Region
Zhongzhou, China

Last Updated: 09/26/2026

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Found 9 publications

Fluorodeschloroketamine found as a street drug in drug seizures and drug driving cases in Hong Kong.

Fluorodeschloroketamine found as a street drug in drug seizures and drug driving cases in Hong Kong.

Journal: Forensic science international

Published: March 14, 2024

Prevalence of drugs of abuse found in forensic testing of illicit drug seizures and urine samples from offenders/probationers in Hong Kong: A 3-year update.

Prevalence of drugs of abuse found in forensic testing of illicit drug seizures and urine samples from offenders/probationers in Hong Kong: A 3-year update.

Journal: Forensic science international

Published: August 13, 2020

The Emergence of Deschloro-N-ethyl-ketamine, a Ketamine Analog, in Drug Seizures and Drug Driving Cases in Hong Kong.

The Emergence of Deschloro-N-ethyl-ketamine, a Ketamine Analog, in Drug Seizures and Drug Driving Cases in Hong Kong.

Journal: Journal of analytical toxicology

Published: November 14, 2019

Forensic drug analysis of chloro-N,N-dimethylcathinone (CDC) and chloroethcathinone (CEC): Identification of 4-CDC and 4-CEC in drug seizures and differentiation from their ring-substituted positional isomers.

Forensic drug analysis of chloro-N,N-dimethylcathinone (CDC) and chloroethcathinone (CEC): Identification of 4-CDC and 4-CEC in drug seizures and differentiation from their ring-substituted positional isomers.

Journal: Forensic science international

Published: January 03, 2019

Prevalence of drugs of abuse found in testing of illicit drug seizures and urinalysis of selected population in Hong Kong.

Prevalence of drugs of abuse found in testing of illicit drug seizures and urinalysis of selected population in Hong Kong.

Journal: Forensic science international

Published: January 03, 2019

The occurrence of alcohol/drugs by toxicological examination of selected drivers in Hong Kong.

The occurrence of alcohol/drugs by toxicological examination of selected drivers in Hong Kong.

Journal: Forensic science international

Published: December 09, 2016

Roadside detection of impairment under the influence of ketamine--evaluation of ketamine impairment symptoms with reference to its concentration in oral fluid and urine.

Roadside detection of impairment under the influence of ketamine--evaluation of ketamine impairment symptoms with reference to its concentration in oral fluid and urine.

Journal: Forensic science international

Published: June 09, 2006

A high-throughput urinalysis of abused drugs based on a SPE-LC-MS/MS method coupled with an in-house developed post-analysis data treatment system.

A high-throughput urinalysis of abused drugs based on a SPE-LC-MS/MS method coupled with an in-house developed post-analysis data treatment system.

Journal: Forensic science international

Published: November 19, 2005

A rapid and convenient LC/MS method for routine identification of methamphetamine/dimethylamphetamine and their metabolites in urine.

A rapid and convenient LC/MS method for routine identification of methamphetamine/dimethylamphetamine and their metabolites in urine.

Journal: Forensic science international

Published: July 28, 2005

Showing 1-9 of 9

Last Updated: 09/26/2026