115.10 离子对色谱法测定细胞内α-酮戊二酸含量
【作者】 陶国庆; 李凤辰; 邵菲; 付水林; 宫衡;
【Author】 TAO Guo-qing,LI Feng-chen,SHAO Fei,FU Shui-lin,GONG Heng(The State Key Loboratory of Bioreactor Engineering,East China Universiey of Science and Technology,Shanghai 200237,China)
【机构】 华东理工大学生物反应器工程国家重点实验室;
【摘要】 采用离子对色谱法测定细胞内α-酮戊二酸含量。色谱柱为Platisil C18柱,流动相为0.5%(NH4)2HPO4-5mmol.L-1四丁基氢氧化铵,H3PO4调pH值为4.0,检测波长为214 nm。结果表明,α-酮戊二酸与其它代谢物的分离效果较好,方法的线性相关系数为0.9996,相对标准偏差为0.38%,平均回收率为99.38%。 更多还原
【Abstract】 An ion-pair chromatography method was established for the determination of content of α-ketoglutarate in E.coli BL21.A Platisil C18 column was used with the mobile phase of 0.5%(NH4)2HPO4-5 mmol·L-1 tetrabutylammonium hydroxide(pH value was adjusted by H3PO4 to 4.0) at the detection wavelength of 214 nm.The results showed that α-ketoglutarate was well separated from other metabolics.Its linear correlation coefficient was 0.9996,the relative standard deviation was 0.38%,the average recovery was 9... 更多还原
【关键词】 大肠杆菌; 离子对色谱法; α-酮戊二酸;
【Key words】 E.coli; ion-pair chromatography; α-ketoglutarate;