离子交换高效液相色谱法分析质粒pUDKH
Se pu = Chinese journal of chromatography / Zhongguo hua xue hui（2004）
Abstract
采用阴离子交换高效液相色谱法监测重组质粒pUDKH的生产过程和该质粒产物中超螺旋pUDKH的比例.所用的色谱条件为:色谱柱TSK gel DNA-NPR (4.6 mm i.d.×75 mm);流动相体系由20 mmol/L Tris-HCl(pH 8.8)和1 mol/L NaCl组成,梯度洗脱方式.分析结果表明:质粒产物中超螺旋pUDKH含量达95%(质量分数)以上时,检测不到残留的核糖核酸(RNA).高效液相色谱法检测质粒pUDKH产物及其生产过程的灵敏度高、试样用量少,分辨率高.
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Key words
high performance liquid chromatographyi plasmid pudkh,supercoiled
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