Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1210664 | Journal of Chromatography A | 2009 | 9 Pages |
Abstract
Block copolymers of ethylene oxide (EO) and propylene oxide (PO) are characterized by combination of two-dimensional chromatography and MALDI-TOF-MS. Liquid chromatography under critical conditions (LCCC) is used as first dimension and fractions are collected, mobile phase evaporated and diluted in the mobile phase used in second dimension (SEC or LAC). This two-dimensional chromatography in combination of MALDI-TOF-MS gives information about purity of reaction products, presence of the byproducts, chemical composition and molar mass distribution of all the products.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Muhammad Imran Malik, Bernd Trathnigg, Robert Saf,