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DETERMINATION OF RESIDUAL METHANOL IN PSEUDOEPHEDRINE HYDROCHLORIDE BY HEADSPACE GAS CHROMATOGRAPHY
Author(s): 
Pages: 19-20
Year: Issue:  4
Journal: CHEMICAL ANALYSIS AND METERAGE

Keyword:  顶空气相色谱法合成盐酸伪麻黄碱甲醇残留量;
Abstract: 选用HP-5型毛细管柱(30 m ×0.53 mm i.d.,1.5 μm)和氢火焰离子化检测器,用顶空气相色谱法测定合成盐酸伪麻黄碱中的甲醇残留量.该方法的线性范围为0~11.7μg/mL,线性回归方程为Y=0.204c+0.111,相关系数r=0.9997,检出限为0.4μg/mL,相对标准偏差为0.8%~1.4%,回收率为97.8%~104.2%.该方法操作简单,测定结果准确.
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