Offidani C, Strano Rossi S, Chiarotti M
Department of Legal Medicine, Catholic University of the Sacred Heart, Rome, Italy.
Forensic Sci Int. 1993 Dec;63(1-3):171-4. doi: 10.1016/0379-0738(93)90271-b.
An enzymatic hair extraction method is proposed for drug analysis. Pronase digestion of various aliquots of hair from a cocaine abuser was preceded by a 2-h incubation with a dithiothreitol solution. The extraction solution was tested to identify possible interferences in the radioimmunoassay and was compared with other hydrolysis methods to assess the results of extraction.