Improved Gas Chromatography/Mass Spectrometry Analysis of Barbiturates in Urine Using Centrifuge-Based Solid-Phase Extraction, Methylation, with d5-Pentobarbital as Internal Standard

1994 ◽  
Vol 39 (6) ◽  
pp. 13737J ◽  
Author(s):  
Ray H. Liu ◽  
Angela M. McKeehan ◽  
Cinnamon Edwards ◽  
Garon Foster ◽  
Wayne D. Bensley ◽  
...  
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