淋洗剂凝胶渗透色谱法研究非缔合多组分溶液

A polyglycol solution containing different molecular weight PEG components waschosen as test solution. By comparing the results obtained by conventional gel permeation chro-matography GPC(water as eluent, sample solution as injected solution)and Eluent-GPC (PEGsample solution as eluent, the concentrated sample solution ,diluted sample solution, water, and sample solution itself as injected solution respectively), the advantage and potential practical usage of Eluent-GPC were discussed.

环氧封端Cardo聚芳醚腈的研究

用凝胶渗透色谱仪（ＧＰＣ）在一定条件下，测定聚合物的分子量及其分布的变化可以预示聚合物的最佳合成条件．同时，用ＦＴＩＲ和１ＨＮＭＲ表征了环氧封端酚酞型Ｃａｒｄｏ聚芳醚腈（ＥＴＭＰＣＥ）的分子链结构，测定了ＥＴＭＰＣＥ试样的环氧值和溶解性．

葡多酚对体外培养肝细胞PKC表达影响

目的体外观察葡多酚(GPC)对小鼠肝细胞蛋白激酶C(PKC)表达的影响。方法将正常小鼠肝细胞加入不同剂量GPC共同培养后,用免疫细胞化学法检测各组肝细胞PKC表达;四甲基偶氮噻唑蓝(MTT)法检测各组肝细胞的增殖活性。结果100 mg/L GPC组肝细胞内PKC阳性表达率和细胞增殖活性分别为34.24%和0.654±0.062,经统计学χ2检验和t检验,与正常对照比较差异均有统计学意义(P<0.05)。结论葡多酚可促进小鼠肝细胞PKC表达,提高肝细胞增殖活性。