Gel Permeation Chromatography was used to determine the distribution and average molecular weight of polyether polyols.
用凝胶渗透色谱测定聚醚多元醇的相对分子质量及其分布。
Distribution of imidacloprid in walnut tissues after trunk injection was examined by high performance liquid chromatography(HPLC).
采用高效液相色谱（HPLC）测定了吡虫啉经树干注药后在核桃树体中的分布动态。
It introduced the gel chromatography to determine the average molecular weight and molecular weight distribution of high polymer.
介绍了用凝胶色谱法测定高聚物的平均分子量及分子量分布。
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