This paper describes an RP-HPLC method to characterize the ozonation products of polyethylene glycols (PEGs) (general formula HO(CH 2CH 2O) n -H) with original mass 5000. Samples with different pH and ozonation times were studied. The amounts of individual products up to n = 56, the percentage of PEGs as a final product and the molecular distribution ( M w/ M n) were calculated. The samples were concentrated by liquid-liquid extraction.
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机译：本文描述了一种RP-HPLC方法，用于表征质量为5000的聚乙二醇（PEG）（通式为HO（CH 2CH 2O）n -H）的臭氧化产物。研究了不同pH和臭氧化时间的样品。计算出最多n = 56的单个产物的量，作为最终产物的PEG的百分比以及分子分布（M w / M n）。通过液-液萃取浓缩样品。
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