防老剂BHT的提纯及其纯度检测  

Purification and Purity Determination of Antioxidant BHT

作　　者：魏伯荣[1] 陈青[1] 包德君[1] 尹德忠[1] 

机构地区：[1]西北工业大学理学院,陕西西安710072

出　　处：《化学工业与工程》2006年第1期37-40,共4页Chemical Industry and Engineering

基　　金：国防军工计量"十五"计划重点项目(任务号:J142001A001)

摘　　要：为提高防老剂BHT的纯度,采用重结晶和区域熔融法对工业品防老剂BHT进行提纯。用高效液相色谱仪和差示扫描量热仪对样品进行纯度检测,试验结果表明,其方法可靠、准确。提纯品防老剂BHT的纯度为99.09%(高效液相色谱法,相对标准偏差0.08%)和99.16%(差示扫描量热法,相对标准偏差0.14%),纯度可达到国际同类产品水平。In order to improve the purity of industrial product, Antioxidant BHT was purified by the methods of recrystalize and zone melting. The purity was determined by high performance liquid chromatography （HPLC） and differential scanning calorimetry （DSC）. The purity tested by HPLC is 99.09 % with relative standard deviation （RSD） of 0.08%, tested from the way of standard curve. The purity tested by DSC is 99.16% with RSD of 0.14%. This purified antioxidant BHT reaches the same level of international product.

关 键 词：防老剂BHT 重结晶 区域熔融 

分 类 号：TQ243.12[化学工程—有机化工] TQ028.97