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应用毛细管气相色谱-质量选择检测器(GCMSD),以麻黄碱为内标,测定血浆中伪麻黄碱浓度。选择离子检测方式(STM)可避免生物样品中许多杂
The concentration of pseudoephedrine in plasma was determined by capillary gas chromatography-mass selective detector (GCMSD) with ephedrine as internal standard. Select ion detection mode (STM) to avoid many of the biological samples