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Chemical profiling of 3,4-methylenedioxymethamphetamine (MDMA) tablets seized in Hong Kong.
It is revealed that in Hong Kong MDMA tablets have made up 98 and 71% of the total ecstasy tablets examined in 2000 and 2001, respectively, and the ratio of the phosphate to MDMA was determined to be 1:1, suggesting that the compound is a dihydrogen phosphate salt. Expand
Roadside detection of impairment under the influence of ketamine--evaluation of ketamine impairment symptoms with reference to its concentration in oral fluid and urine.
The typical signs and symptoms observable for subjects under the influence of ketamine included LOC, HGN, elevated pulse rate and in general, failing the divided attention tests, especially the walk-and-turn and one-leg stand. Expand
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 rapid urinalysis system based on SPE-LC-MS/MS with an in-house post-analysis data management system that significantly improves the quality of results, reduces the post-data treatment time, error due to data transfer and is suitable for high-throughput laboratory in batch-wise operation. Expand
Enantiomeric separation of methamphetamine and related analogs by capillary zone electrophoresis: intelligence study in routine methamphetamine seizures.
A method for simultaneous enantiomeric separation of ephedrine, pseudoephedrine, and methamphetamine (MA) in a single run by simple capillary zone electrophoresis (CZE) with beta-cyclodextrin as aExpand
Syntheses of novel monomeric 1,4,7-trimethyl-1,4,7-triazacyclononane ruthenium complexes. Reactivities and structure of sterically encumbered cationic monoaquaruthenium(II) and monooxoruthenium(IV)
The complexes [RuII(tacn)(bipy)(OH2)]2+1 and [RuIV(tacn)(bipy)O]2+2(tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane, bipy = 2,2′-bipyridine) have been synthesised and their crystal structuresExpand
The occurrence of alcohol/drugs by toxicological examination of selected drivers in Hong Kong.
Investigation of fatal injured drivers from traffic accidents, drink driving and drug driving cases in Hong Kong revealed that increase usages of methamphetamine, cocaine and zopiclone were observed, and Ketamine was the most frequently detected drug in fatally injured drivers. Expand
Synthesis, characterization and crystal structures of some half-sandwich ruthenium(II) complexes of 1,4,7-trimethyl-1,4,7-triazacyclononane containing π-acidic ancillary ligands
The synthesis of a series of ruthenium(II) complexes of 1,4,7-trimethyl-1,4,7-triazacyclononane L of type [RuL(X)Y(Z)]+ containing H, O2CCF3, CO, PPh3, dppe [1,2-bis(diphenylphosphino)ethane] orExpand
Alkyne Oxidations by cis-Dioxoruthenium(VI) Complexes. A Formal [3 + 2] Cycloaddition Reaction of Alkynes with cis-[(Cn*)(CF3CO2)RuVIO2]ClO4 (Cn* = 1,4,7-Trimethyl-1,4,7-triazacyclononane)
cis-Dioxoruthenium(VI) complexes, [Cn*(CF3CO2)RuVIO2]ClO4 (1) (Cn* = 1,4,7-trimethyl-1,4,7-triazacyclononane) and cis-[(Tet-Me6)RuVIO2](ClO4)2 (2) (Tet-Me6 =Expand
A rapid and convenient LC/MS method for routine identification of methamphetamine/dimethylamphetamine and their metabolites in urine.
The newly developed LC/MS method was applied to the analysis of urine samples obtained from 118 suspected MA/DMA abusers, with the presence of MA confirmed in their urine samples under the drug-use surveillance program. Expand
Chiral ruthenium(IV)-oxo complexes. Structure, reactivities of [Ru(terpy)(N∩N)O]2+ (N∩N = N,N,N′,N′-tetramethyl-1,2-diaminocyclohexane) and [Ru(Me3tacn)(cbpy)O]2+ (cbpy =
Abstract The Complexes [RuIV(terpy)(cxhn)O](ClO4)2 (cxhn = N,N,N′,N′-tetramethyl-1,2-diaminocyclohexane, terpy = 2,2′:6′,2′′(terpyridine) and RunIV(Me3tacn)(cbpy)O](ClO4)2 (cbpy =Expand