Chapter title |
Analysis of Trace Drugs of Abuse by Direct Analysis in Real Time (DART) Mass Spectrometry
|
---|---|
Chapter number | 17 |
Book title |
Analysis of Drugs of Abuse
|
Published in |
Methods in molecular biology, January 2018
|
DOI | 10.1007/978-1-4939-8579-1_17 |
Pubmed ID | |
Book ISBNs |
978-1-4939-8578-4, 978-1-4939-8579-1
|
Authors |
David D. Cunningham, Cunningham, David D. |
Abstract |
Analysis of trace amounts of drugs of abuse is important in a variety of situations, including forensic casework. Here, a method for the facile, rapid collection of traces of drugs from a variety of porous and nonporous surfaces, including fabrics, is detailed. A small amount of extraction solvent, including an internal standard, is applied to the fabric surface, followed by application of a patterned absorbent disk which resorbs much of the extraction solvent along with dissolved traces of any drug present. Over half of the extraction solvent is recovered in 15 s from many natural and synthetic fabrics, with weights ranging from 64 to 374 mg/in.2, by pressing a half-inch diameter patterned glass fiber membrane disk to the wetted area. The patterned disk is then placed in a standard OpenSpot™ holder of a direct analysis in real time (DART) mass spectrometer with a data collection time of 1 or 2 min. Semi-quantitation of low microgram levels of drugs is achieved by comparison of spectra to those from a standard control disk. |
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