Kentucky State Police Central Forensic Laboratory

Frankfort, KY, United States

Kentucky State Police Central Forensic Laboratory

Frankfort, KY, United States

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Triplett J.S.,Kentucky State Police Central Forensic Laboratory | Hatfield J.A.,Kentucky State Police Central Forensic Laboratory | Kaeff T.L.,Kentucky State Police Central Forensic Laboratory | Ramsey C.R.,Kentucky State Police Central Forensic Laboratory | And 2 more authors.
Journal of Forensic Sciences | Year: 2013

Raman spectroscopy has found increased use in the forensic controlled substances laboratory in recent years due to its rapid and nondestructive analysis capabilities. Here, Raman spectroscopy as a screening test for methamphetamine in clandestine laboratory liquid samples is discussed as a way to improve the efficiency of a laboratory by identifying the most probative samples for further workup among multiple samples submitted for analysis. Solutions of methamphetamine in ethanol, diethyl ether, and Coleman fuel were prepared in concentrations ranging from 0.5% to 10% w/v, and Raman spectra of each were collected. A concentration-dependant Raman peak was observed at 1003 per cm in each solution in 4% w/v and greater solutions. Case samples were analyzed and also found to reliably contain this diagnostic peak when methamphetamine was present. The use of this diagnostic indicator can save the forensic controlled substances laboratory time and materials when analyzing clandestine laboratory liquid submissions. © 2013 American Academy of Forensic Sciences 586 November 2013 10.1111/1556-4029.12213 Technical Note Criminalistics Technical Notes © 2013 American Academy of Forensic Sciences.


PubMed | Kentucky State Police Central Forensic Laboratory
Type: Journal Article | Journal: Journal of forensic sciences | Year: 2013

Raman spectroscopy has found increased use in the forensic controlled substances laboratory in recent years due to its rapid and nondestructive analysis capabilities. Here, Raman spectroscopy as a screening test for methamphetamine in clandestine laboratory liquid samples is discussed as a way to improve the efficiency of a laboratory by identifying the most probative samples for further workup among multiple samples submitted for analysis. Solutions of methamphetamine in ethanol, diethyl ether, and Coleman fuel were prepared in concentrations ranging from 0.5% to 10% w/v, and Raman spectra of each were collected. A concentration-dependent Raman peak was observed at 1003 per cm in each solution in 4% w/v and greater solutions. Case samples were analyzed and also found to reliably contain this diagnostic peak when methamphetamine was present. The use of this diagnostic indicator can save the forensic controlled substances laboratory time and materials when analyzing clandestine laboratory liquid submissions.

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