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[A double column double pH solid phase extraction and capillary GC/FID method for rapid simultaneous determination of
1Institute of Toxicology and Pharmacology, Academy of Military Medical Sciences, Beijing.
Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|January 1, 1996
Abstract:
A capillary gas chromatographic method for the rapid simultaneous identification and quantitation of acidic and basic drugs in human plasma is presented. A special double column solid phase extraction device was designed, in which two X-5 resin columns can extract drugs at different pH. The detection limits for acidic and basic drugs can reach 0.5 microgram.ml-1, while the time needed is only half of that when using commercial solid phase extraction cartridges.