超高效液相色谱法快速测定复合助剂中抗氧剂168、抗氧剂1010及硬脂酸钙的含量  

Content determine of antioxidant 168, 1010 and calcium stearate compound additives by U-HPLC

作　　者：冯彬 徐婷婷 赵铁凯 张超 郝敏彤 FENG Bin;XU Tingting;ZHAO Tiekai;ZHANG Chao;HAO Mintong(Daqing Chemical Research Center,Research Institute of Petrochemical Industry,CNPC,Daqing 163714,China)

机构地区：[1]中国石油石油化工研究院大庆化工研究中心,黑龙江大庆163714

出　　处：《精细石油化工进展》2022年第2期55-58,共4页Advances in Fine Petrochemicals

摘　　要：为了建立一种超高效液相色谱法快速测定复合助剂中单独组分含量的方法,采用超高效液相色谱仪对四[β-(3,5-二叔丁基-4-羟基苯基)丙酸]季戊四醇酯(抗氧剂1010)、三(2,4-二叔丁基苯基)亚磷酸酯(抗氧剂168)及硬脂酸钙为原料复配而成的助剂进行含量分析。结果表明:在流速0.3 mL/min、柱温40℃、进样量1μL时,超高效液相色谱法测定抗氧剂含量的相对标准偏差不超过1%,有助于抗氧剂质量分数的测定。超高效液相色谱法操作简便,分析速度快,可作为其组分含量控制的依据,进一步提升产品品质。A method was established to determine the content of compound additives by using ultra-high performance liquid chromatography(U-HPLC).The contents of Pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate)(antioxidant 1010),tris(2.4 di-tert-butylphenyl)phosphate(antioxidant 168)and calcium stearate were analyzed by ultra U-HPLC.Results showed that when the flow rate was 0.3 mL/min,the column temperature was 40℃and the injection volume was 1μL,the relative standard deviation of antioxidant content was less than 1%.Test method was helpful for the determination of antioxidant content.U-HPLC is easy to operate and fast to analyze,and it can be used as the basis of quality fraction control to further improve quality of products.

关 键 词：超高效液相色谱 抗氧剂1010 抗氧剂168 硬脂酸钙 聚丙烯 

分 类 号：O657.72[理学—分析化学] TQ325.14[理学—化学]