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Chayanid Sornchaithawatwong. 2001. Determination of amphetamine, methamphetamine and ephedrine in urine by gas chromatography/mass spectrometry using ion-pair extraction /Chayanid Sornchaithawatwong. Field of Study Pharmaceutical Chemistry, Chulalongkorn University;
Chayanid Sornchaithawatwong. (2001) Determination of amphetamine, methamphetamine and ephedrine in urine by gas chromatography/mass spectrometry using ion-pair extraction /Chayanid Sornchaithawatwong . Chulalongkorn University/Bangkok.
Chayanid Sornchaithawatwong. Determination of amphetamine, methamphetamine and ephedrine in urine by gas chromatography/mass spectrometry using ion-pair extraction /Chayanid Sornchaithawatwong. . Bangkok:Chulalongkorn University, 2001.
Chayanid Sornchaithawatwong. (2001) Determination of amphetamine, methamphetamine and ephedrine in urine by gas chromatography/mass spectrometry using ion-pair extraction /Chayanid Sornchaithawatwong . Chulalongkorn University/Bangkok.