凝胶渗透色谱法测定瓶级PET切片相对分子质量的制样方法优化

Gel permeation chromatography determination bottle grade PET chips relative molecular weight system optimized sample preparation methods

样品制备是凝胶渗透色谱(GPC)测定瓶级PET切片分子质量的一个关键因素,样品剪切方法的差异、烘箱温度的误差、加热时间的变化、溶剂和溶解方法选择的不同等都有可能影响到测试的结果。通过优化以上这些因素可以使得测试结果更为准确。

The sample preparation is a gel permeation chromatography determination bottle grade PET chips molecular weight very essential factor, dissolves the type temperature control improper, the sample density preparation＇s error, heating-up time＇s change, the resolver and the dissolved method choice not same level has the possibility to affect the test result. Above through optimizes these factors to be possible to cause the test result to be more accurate.