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Malik MI. Liquid Chromatography at Critical Conditions in Polymer Analysis: A Perspective. Chromatographia 2021. [DOI: 10.1007/s10337-021-04096-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abrar S, Trathnigg B, Javed S, Kiran S, Gulzar T. Characterization of Tween® Surfactants by MALDI TOF-MS and High Performance Liquid Chromatography in a Ternary Mobile Phase. TENSIDE SURFACT DET 2018. [DOI: 10.3139/113.110590] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractDifferent hydrophobic and hydrophilic functionalities are produced in the reaction mixture of Tween® surfactants which affect the physiochemical properties of the final product. Only hydrophilic fractions and monoesters were separated in the binary mobile phase. MALDI TOF-MS of Tween® 40 revealed the identification of peaks separated in binary mobile phase (methanol-water). Liquid adsorption chromatography was performed on a gradient system on a SynergiTM fusion reverse phase column. Mobile phase composition used for this separation was a ternary phase gradient starting from 41 % methanol, 47 % acetone and going to 96 % acetone for the analysis time of 60 minutes. In the ternary mobile phase, gradient all the species such as polyethylene glycol, sorbitan and isosorbide ethoxylates, mono-, di- and triesters of sorbitan and isosorbide ethoxylates were well resolved in an of 60 minutes analysis time. The above separation mechanism can be employed for the analysis of polymeric multifunctional surfactant compositions.
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Affiliation(s)
- Shazia Abrar
- 1Department of Applied Chemistry, Government College University Faisalabad, Pakistan
| | - Bernd Trathnigg
- 2Institute of Chemistry, Karl-Franzens-University, Central Polymer Laboratory/Molecular Characteristics (CePol/MC), Heinrichstrasse 28, A-8010 Graz, Austria
| | - Sadia Javed
- 1Department of Applied Chemistry, Government College University Faisalabad, Pakistan
| | - Shumaila Kiran
- 1Department of Applied Chemistry, Government College University Faisalabad, Pakistan
| | - Tahsin Gulzar
- 1Department of Applied Chemistry, Government College University Faisalabad, Pakistan
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Barqawi H, Schulz M, Olubummo A, Saurland V, Binder WH. 2D-LC/SEC-(MALDI-TOF)-MS Characterization of Symmetric and Nonsymmetric Biocompatible PEOm–PIB–PEOn Block Copolymers. Macromolecules 2013. [DOI: 10.1021/ma401604h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Haitham Barqawi
- Faculty
of Natural Sciences II (Chemistry, Physics, Mathematics), Institute
of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Matthias Schulz
- Faculty
of Natural Sciences II (Chemistry, Physics, Mathematics), Institute
of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Adekunele Olubummo
- Faculty
of Natural Sciences II (Chemistry, Physics, Mathematics), Institute
of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Volker Saurland
- Bruker Daltonik GmbH, Fahrenheitstrasse 4, 28359 Bremen, Germany
| | - Wolfgang H. Binder
- Faculty
of Natural Sciences II (Chemistry, Physics, Mathematics), Institute
of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
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Mlynek M, Radke W. Critical chromatography in ternary solvents. J Chromatogr A 2013; 1284:112-7. [DOI: 10.1016/j.chroma.2013.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 01/29/2013] [Accepted: 02/05/2013] [Indexed: 10/27/2022]
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Barqawi H, Ostas E, Liu B, Carpentier JF, Binder WH. Multidimensional Characterization of α,ω-Telechelic Poly(ε-caprolactone)s via Online Coupling of 2D Chromatographic Methods (LC/SEC) and ESI-TOF/MALDI-TOF-MS. Macromolecules 2012. [DOI: 10.1021/ma3016739] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haitham Barqawi
- Faculty of Natural Sciences
II (Chemistry, Physics, Mathematics), Institute of Chemistry, Chair
of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Elena Ostas
- Faculty of Natural Sciences
II (Chemistry, Physics, Mathematics), Institute of Chemistry, Chair
of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
| | - Bo Liu
- Institut des Sciences Chimiques
de Rennes, Organometallics: Materials and Catalysis, UMR 6226 CNRS-Université de Rennes 1, F-35042,
Rennes Cedex, France
| | - Jean-François Carpentier
- Institut des Sciences Chimiques
de Rennes, Organometallics: Materials and Catalysis, UMR 6226 CNRS-Université de Rennes 1, F-35042,
Rennes Cedex, France
| | - Wolfgang H. Binder
- Faculty of Natural Sciences
II (Chemistry, Physics, Mathematics), Institute of Chemistry, Chair
of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany
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Recent developments in the detailed characterization of polymers by multidimensional chromatography. J Chromatogr A 2012; 1240:1-20. [DOI: 10.1016/j.chroma.2012.03.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 03/06/2012] [Accepted: 03/10/2012] [Indexed: 02/03/2023]
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