Determination of polyethylene glycols in water by reversed-phase high-performance liquid chromatography
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 PE...
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Published in | Journal of Chromatography A Vol. 723; no. 2; pp. 243 - 249 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
09.02.1996
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Subjects | |
Online Access | Get full text |
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Summary: | 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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ISSN: | 0021-9673 |
DOI: | 10.1016/0021-9673(95)00848-9 |