Erowid References Database
Folen VA.
“X-ray powder diffraction data for some drugs, excipients, and adulterants in illicit samples”.
J Forensic Sci. 1975 Mar 1;20(2):348-72.
|
Abstract
X-ray powder diffraction data have been developed or refined for the identification of drugs, excipients, and adulterants found in illicit preparations.
The development of new compounds with the potential for drug abuse necessitates a continuous accumulation of analytical data in the forensic laboratory. Also, the identification of excipients and adulterants in drug samples provides a data base that can be used for intelligence purposes. Correlation of cases can provide investigative leads as well as being supporting evidence in conspiracy cases.
The purpose of the present paper is to present X-ray powder diffraction data not available in the literature. Included in the paper are data on compounds where more complete and accurate tabulations than those already published have been obtained.
The X-ray diffraction powder method has proven to be very effective and specific in the identification of crystalline substances. For example, different hydrates of the same compound, as well as polymorphic forms, have completely different X-ray diffraction patterns. Compounds in mixtures can be identified without separation. The Special Testing and Research Laboratory has been able to identify three components of a mixture from a single strip chart recording, which was a composite of the diffraction patterns of the substances involved.
|
# |
Status: display
|
|
Submit Comment |
|
[
Cite HTML ]