高效液相色谱法同时检测对苯二甲酸精制残渣中的八组分  

SIMULANEOUS DETERMINATION OF EIGHT COMPOUNDS IN RESIDUE FROM FURIFICATION OF TEREPHTHALIC ACID BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

作　　者：李邦[1] 韩仿[1] 

机构地区：[1]天津石化公司研究院,天津300271

出　　处：《精细石油化工》2005年第5期67-69,共3页Speciality Petrochemicals

摘　　要：采用高效液相色谱法,以弱极性阴离子交换键合固定相、磷酸盐缓冲溶液为流动相,UV 235 nm 检测,外标法定量,同时测定了对苯二甲酸精制残渣中的4-甲基苯甲醇,对甲基苯甲醛,4-羧基苯甲醛,苯甲酸,对甲基苯甲酸,对苯二甲酸,邻苯二甲酸和间苯二甲酸的含量,其回收率均在97.1%～105.4%之间,变异系数小于3.36%,相关系数为0.99163。A HPLC method has been developed for the simultaneous determination of 4-methylbenzy lalcohol, p-tolualdehyde, 4-caboxybenzaldehyde, benzoic acid, p-toluic acid, terephthalic acid, ophthalic acid and isophthalic acid in the residue from purification of terephthalic acid. These corn trile-phosphate buffer solution（V/V=8/92, pH=7.2） as mobile p nm. The results showed that the recoveries were 97. 1%- 105.4% the correlation coefficient was 0. 991. 4. 6 mm ID, by using an acetonihase, with UV deterection at 235 , RSD were less than 3.36% and

关 键 词：高效液相色谱法 4-甲基苯甲醇 对甲基苯甲醛 4-羧基苯甲醛苯甲酸 对甲基苯甲酸 对苯二甲酸邻苯二甲酸 间苯二甲酸 残渣 对苯二甲酸精制 

分 类 号：TQ657.72[化学工程—精细化工]