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Development of a Combined Standard Additions/Internal Standards Method to Quantify Residual PEG in Ethoxylated Surfactants by MALDI TOFMS
Journal article

Development of a Combined Standard Additions/Internal Standards Method to Quantify Residual PEG in Ethoxylated Surfactants by MALDI TOFMS

Renata Szyszka, Scott D. Hanton, Diane Henning and Kevin G. Owens
Journal of the American Society for Mass Spectrometry, v 22(4), pp 633-640
01 Apr 2011
PMID: 21472602

Abstract

Biochemical Research Methods Biochemistry & Molecular Biology Chemistry Chemistry, Analytical Chemistry, Physical Life Sciences & Biomedicine Physical Sciences Science & Technology Spectroscopy Technology
Measuring the residual polyethylene glycol (PEG) in polyethylene oxide (PEO)-based surfactants is important to fully understanding the performance of these materials. Traditional methods of quantitating PEG in PEO-based surfactants can be time-consuming and struggle with low amounts or overlapping molecular mass distributions. This paper describes a matrix-assisted laser desorption/ionization (MALDI) mass spectrometry method developed to quantitate residual PEG in a series of ethoxylated surfactants. The technique addresses the difficulties faced in doing quantitative MALDI experiments by utilizing both internal standard and standard additions protocols. The method produces excellent straight line standard addition plots, and the quantitative results are verified using both a constructed standard and an independent traditional chromatographic separation.

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Collaboration types
Industry collaboration
Domestic collaboration
Web of Science research areas
Biochemical Research Methods
Chemistry, Analytical
Chemistry, Physical
Spectroscopy
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