4Wielbo D, Tebbett IR. The Use of Microcrystal Tests in Conjunction with Fourier Transform Infra Red Spectroscopy for the Rapid Identification of Street Drugs[J]. Forensic Sciences. 1992,4:1 134-1148.
5United Nations International Drug Control Programme.Recommended methods for testing opium,morphine and heroin[M].New York:United Nations,1998:9-11.
6O'Neil P J, Gough T A. IUieitly imported heroin products, Some physical and chemical features indicative of their origin. Part 11 [J]. Forensic Sci, 1985, 30:681- 691.
7Vichet Puthaviriyakom, Narinee Siriviriyasomboon, Juthamard Phorachata, Wiphada Parrox, Tetsuro Sasaki, Ken Tanaka. Identification of impurities and statistical classification of methamphetamine tablets (Ya-Ba) seized in Thailand[J]. Forensic Sci, 2002, 126:105-113.
8Myors R, Wells R J. Pretininary investigation of heroin fingerprinting using trace element concentrations [J]. AnalComm, 1998,32(12):403-410.
9Wells R J, Skopec S V, Iavetz R. Trace element analysis of heroin by ICP-MS[J]. Chem Australia, 1995, 62 : 14-15.
10David N, King L A, Saulsbury W. The Lancet, 2007, 369: 1047-1053.
