高效液相色谱法/二极管阵列检测器分析乙二醇中的未知痕量杂质  

Analysis by HPLC/DAD of Unknown Trace Impurities in Ethylene Glycol

作　　者：平德来[1] 王玉春[1] 

机构地区：[1]扬子石化股份有限公司研究院,江苏南京210048

出　　处：《石油化工》2000年第12期942-945,共4页Petrochemical Technology

摘　　要：建立了测定乙二醇中影响紫外透光率的痕量杂质的方法。采用高效液相色谱法 /二极管阵列检测器首次测定了乙二醇中的 3 -甲基 -1,2 -环戊二酮和 3 ,5 -二甲基 -1,2 -环戊二酮。这两种物质 ,回收率分别为 95 87%～99 95 %和 98 79%～ 10 1 1% ;相对标准偏差分别小于 1 72 %和 4 5 6% ;相关系数分别为 0 9999和 0 9998;最低检出限分别为 0 0 0 6μg/ml和 0 0A method was developed for the determination of trace impurity affecting ultraviolet transmittance in ethylene glycol.3-methyl-1,2-cyclopentanedione(Ⅰ)and 3,5-dimethyl-1,2-cyclopentanedione(Ⅱ)in ethylene glycol were determined by HPLC/DAD.The recovery of Ⅰ and Ⅱ was 95 87%～99 95% and 98 79%～101 1%,respectively.The relative standard deviations of Ⅰ and Ⅱ were less than 1 72% and 4 56%,respectively.The correlation coefficients of Ⅰ and Ⅱ were 0 9999 and 0 9998,respectively.The detection limit of Ⅰ and Ⅱ were 0 006 μg/ml and 0 01 μg/ml,respectively [WT5HZ][

关 键 词：环戊二酮 乙二醇 痕量杂质 高效液相色谱法 

分 类 号：TQ223.162[化学工程—有机化工]