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出 处:《现代化工》2015年第8期190-192,共3页Modern Chemical Industry
摘 要:建立了高效液相色谱-蒸发光检测器(HPLC--ELSD)法检测甲基葡萄糖苷含量的方法。最佳色谱分析条件为:AlltechApolloC18色谱柱(4.6mm×250mm,5μm),流动相V(水):V(甲醇)=5:95,流速为0.7mL/min,柱温为30℃。ELSD检测器漂移管温度为104℃,载气(空气)流速为2.8L/min。甲基葡萄糖苷在2.5~12.5μg/μL之间具有良好的线性关系,r=0.9991,回收率为100.0%~106.3%。该方法简便易行,分析速度快,具有良好的重复性和精密度,适合用于甲基葡萄糖苷的检测。HPLC equipped with ELSD detector is used to determine the content of methyl glucoside. The optimal detection conditions are determined as follows : HPLC instrument fixed with Alltech Apollo C18 column (4. 6 × 250 mm, 5 μ) ,the mobile phase water-methanol (5:95 ,v/v) pumped at a flow rate of 0. 7 mL/min and 30℃ of the operating temperature of column. Drift tube temperature is set at 104℃ and the gas (air) flow rate is 2.8 L/min. The calibration curve is linear (r =0. 999 1 ) within the range of 2. 5 - 12. 5μg/μL for methyl glucoside. The recoveries are in the range from 100. 0% to 106. 3%. This method is simple, accurate, highly sensitive and reproducible, which is suitable for the determination of methyl glucoside.
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