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Liquid Chromatography-Mass Spectrometry Hyphenation for Exhaustive and Unambiguous Characterization of Polyoxyethylene Surfactants.
- Source :
- Chromatographia; Nov2004, Vol. 60 Issue 9/10, p561-566, 6p
- Publication Year :
- 2004
-
Abstract
- A mixture of three polyethylene oxides bearing alkyl chains of different lengths C<subscript>12</subscript>H<subscript>25</subscript>O(CH<subscript>2</subscript>CH<subscript>2</subscript>O)<subscript>n</subscript>H, C<subscript>16</subscript>H<subscript>33</subscript>O(CH<subscript>2</subscript>CH<subscript>2</subscript>O)<subscript>n</subscript>H, C<subscript>18</subscript>H<subscript>37</subscript>O(CH<subscript>2</subscript>CH<subscript>2</subscript>O)<subscript>n</subscript>H have been analyzed by different techniques: two-dimensional LC, MALDI-TOF, ESI-MS and LC-MS. Among these techniques, the LC-MS coupling allowed the fastest analysis (4 min versus 2 h in two-dimensional LC). In addition, the complexity of the mass spectra deduced from LC-MS experiments was simplified compared to the mass spectra obtained by MALDI-TOF and ESI-MS. Overlaps of isobaric ions were avoided and by-products were identified more easily. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00095893
- Volume :
- 60
- Issue :
- 9/10
- Database :
- Complementary Index
- Journal :
- Chromatographia
- Publication Type :
- Academic Journal
- Accession number :
- 49522467
- Full Text :
- https://doi.org/10.1365/s10337-004-0409-3