| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1167623 | Analytica Chimica Acta | 2010 | 8 Pages |
Abstract
Polyoxyalkylene diblock copolymers (consisting of PEO as hydrophilic block and PBO or PHO as hydrophobic block) are characterized by combination of two dimensional liquid 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 the second dimension (SEC, LCCC 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, Karin Bartl, Robert Saf,