About Us Case Studies Blog Contact search Services Capabilities Expertise Industries Served Quality Poloxamer Testing Back to all Services PRINT EMAIL Poloxamer, also known as poloxalene and Pluronic, is a family of synthetic block copolymers of ethylene oxide and propylene oxide. It is available in multiple molecular weights and various comonomer ratios. Approach Fourier transform infrared (FTIR) spectroscopy is used to identify the polymer. Molecular weight is determined by titration of hydroxyl endgroups. Molecular weight can also be determined by Gel Permeation Chromatography (GPC). Comonomer content (ethylene oxide to propylene oxide) is determined by Nuclear Magnetic Resonance Spectroscopy (NMR). Heavy metals content is determined by USP <231> or USP <233>. Limit of free ethylene oxide, propylene oxide, and 1,4 dioxane is determined by Gas Chromatography (GC). pH is determined potentiometrically. Sample Considerations Each test requires different amounts of material. Generally, we can perform the necessary analysis with less than one gram. Experience We have many years of experience testing to monographs as well as performing custom methods. Questions? Ask Us Name Company Country Email Telephone Request a Quote & Submit Samples SGS Polymer Solutions is ready for your materials testing challenge. To get the process started it is as simple as requesting a quote. Once you are ready to submit samples please make sure to include a completed Sample Submission Form. Email Us or call us at (877) 961-4341 Connect with SGS PSI: © 2019 SGS Polymer Solutions Incorporated - All rights reserved. 135 Technology Drive, Christiansburg, VA 24073 Client Confidentiality Terms & Conditions ISO-17025. cGMP Compliant. FDA Registered. DEA Licensed.