PMID- 16860955
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20061128
LR  - 20060918
IS  - 0379-0738 (Print)
IS  - 0379-0738 (Linking)
VI  - 162
IP  - 1-3
DP  - 2006 Oct 16
TI  - Impurity profiling of ecstasy tablets seized in Hong Kong by gas 
      chromatography-mass spectrometry.
PG  - 87-94
AB  - In Hong Kong, ecstasy tablets are more commonly known as "Fing Tau Yuen", 
      literally meaning "Shake Head Pills". The tablets contain mainly amphetamine-type 
      stimulants (ATS) including 3,4-methylenedioxymethamphetamine (MDMA), 
      3,4-methylenedioxyamphetamine (MDA), methamphetamine (MA) and/or ketamine. 
      Adulterant such as caffeine was also detected in the tablets. This paper reports 
      a study on the impurity profiles of ecstasy tablets from 89 seizures in Hong Kong 
      from 2002 to early 2004. Tablet samples were extracted by diethyl ether under 
      alkaline condition and then analyzed by gas GC-MS. The chromatograms obtained 
      were compared. A total of 19 identified impurities were selected as markers for 
      impurity profiling. They are different precursors, intermediates and by-products. 
      The data matrices were examined by hierarchical cluster analysis (HCA), and then 
      the ecstasy tablets were classified into different groups. Cluster analysis of 
      ecstasy tablets is shown to be capable of providing intelligence on clandestine 
      laboratory networks.
FAU - Cheng, Jack Yuk Ki
AU  - Cheng JY
AD  - Forensic Science Division, Hong Kong Government Laboratory, Ho Man Tin Government 
      Offices, 88 Chung Hau Street, Hong Kong, SAR, China. jcheng@govtlab.gov.hk
FAU - Chan, Man Fai
AU  - Chan MF
FAU - Chan, Tai Wai
AU  - Chan TW
FAU - Hung, Mei Yuen
AU  - Hung MY
LA  - eng
PT  - Journal Article
DEP - 20060724
PL  - Ireland
TA  - Forensic Sci Int
JT  - Forensic science international
JID - 7902034
EDAT- 2006/07/25 09:00
MHDA- 2006/07/25 09:01
CRDT- 2006/07/25 09:00
PHST- 2005/11/19 00:00 [received]
PHST- 2006/02/22 00:00 [revised]
PHST- 2006/02/22 00:00 [accepted]
PHST- 2006/07/25 09:00 [pubmed]
PHST- 2006/07/25 09:01 [medline]
PHST- 2006/07/25 09:00 [entrez]
AID - S0379-0738(06)00394-X [pii]
AID - 10.1016/j.forsciint.2006.02.055 [doi]
PST - ppublish
SO  - Forensic Sci Int. 2006 Oct 16;162(1-3):87-94. doi: 
      10.1016/j.forsciint.2006.02.055. Epub 2006 Jul 24.