用凝胶色谱法估测了其分子量、用化学滴定法和红外光谱法测定了其水解率。
Molecular weight was obtained by GPC, hydrolyzed ratio was determined by neutralization titration and infrared spectrometry.
用离子交换柱层析法分离，用反相高效液相色谱法进一步纯化，经聚丙烯酰胺凝胶电泳分析确定相对分子质量。
Methods The peptide was separated by ion exchange column chromatography and further purified by reverse phase HPLC, and the molecular weight was determined by tricine gel electro phoresis.
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