【摘要】 以含5%(体积分数)甲醇的乙醇为萃取剂,对-丙烯基茴香醚为内标,采用气相色谱法测定了醋酸纤维滤棒中的三醋酸甘油酯含量。该法的RSD为0 99%,平均回收率为99 0%。更多还原

【Abstract】 Using the mixture of ethanol and methanol (95∶5, v/v) as a solvent and p-propenyl anisole as an internal standard, the content of triacetin in cellulose acetate filter rod was determined by gas chromatography. The RSD of this method was about 0.99% and the average recovery of triacetin was 99.0%.更多还原