@article{ref1,
title="GC-MS procedure for the analysis of zipeprol",
journal="Journal of pharmaceutical and biomedical analysis",
year="1993",
author="Kintz, P. and Flesch, F. and Jaeger, A. and Mangin, P.",
volume="11",
number="4-5",
pages="335-338",
abstract="A sensitive and specific quantitative method for the determination of zipeprol, a newly abused antitussive, in human fluids is described. Zipeprol and an internal standard, levallorphan, are isolated by a basic extraction and back-extraction process. The final extract is derivatizated with BSTFA + 1% TMCS and separated on a 12-m HP-1 capillary column. Drugs are detected by selected ion monitoring at m/z 335 and m/z 355 for zipeprol and the internal standard, respectively. The minimum detectable quantities are 0.6 and 0.4 ng ml-1, for zipeprol in plasma and urine, respectively. Relative standard deviations for within-run data are less than 6%.<p /><p>Language: en</p>",
language="en",
issn="0731-7085",
doi="10.1016/0731-7085(93)80025-v",
url="http://dx.doi.org/10.1016/0731-7085(93)80025-v"
}