Compendium Developed to Help Forensic Investigators Screen for Drugs (Book, 2016) [WorldCat.org]
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Compendium Developed to Help Forensic Investigators Screen for Drugs

Author: National Institute of Justice (NIJ) Washington DC 20531
Publisher: United States of America 11/2016
Edition/Format: Book Book : English
Summary:
Microcrystal test techniques can distinguish different types of crystals formed in specific types of chemical reactions and can provide an initial identification for a majority of controlled substances. In microcrystal testing, an unknown substance is added to a chemical on a slide. Crystals form that are specific to the substance and can be matched to a known sample through comparison under a microscope. The  Read more...
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Details

Document Type: Book
All Authors / Contributors: National Institute of Justice (NIJ) Washington DC 20531
Language Note: English
Unique Identifier: 4769648727
Notes: Grant Number: 2011-DN-BX-K528
Sale: National Institute of Justice (NIJ), Washington, DC 20531
Sponsoring Agency: National Institute of Justice (NIJ), Washington, DC 20531
ANNOTATION: This is a summary report on a research project that compiled a compendium of microcrystal tests in order to facilitate reliable analytical methods and assist forensic scientists and other researchers in their work.
Awards:
Description: 1 p

Abstract:

Microcrystal test techniques can distinguish different types of crystals formed in specific types of chemical reactions and can provide an initial identification for a majority of controlled substances. In microcrystal testing, an unknown substance is added to a chemical on a slide. Crystals form that are specific to the substance and can be matched to a known sample through comparison under a microscope. The compendium currently contains 19 drugs for which microcrystal tests using various reagents have been previously developed. The drugs in the compendium were chosen from the annual reports compiled by the National Forensic Laboratory Information System (NFLIS). Information about known microcrystal tests was obtained, and a survey of crime laboratories was conduced to determine which reagents and micro crystal tests are currently used. Detailed descriptions are provided for the microcrystals formed from each test, including photomicrographs, morphology illustrations, optical properties, notes, and infrared spectra of the microcrystals. The scientists who created the compendium have noted that although some crime labs lack automated drug testing instruments, most have light microscopes, which are sufficient to do microcrystal testing for illicit drugs. Online access to the compendium is provided on this web page.

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