Why Perform Gas Chromatography?
Gas chromatography can be used to identify and quantify volatile and semi-volatile compounds in your material. Analysis is often performed by extracting compounds from a formulation using a carefully selected extraction condition, and then analyzing that compound with direct injection GC. Volatile compounds can be identified directly from components using head-space techniques, and polymer identification can be performed on very small quantities of materials, often in complex matrices.
Types of Gas Chromatography Offered
Cambridge Polymer Group (CPG) offers a wide range of GC and GC-MS methodologies for analysis of polymers and related samples. Among the techniques available for direct analysis are pyrolysis GC and GC-MS and heated headspace GC or GC-MS analysis. Extracted samples or leachates are analyzed for volatile compounds using headspace GC-MS and for semi-volatile compounds using liquid injection GC-MS. CPG scientists are skilled in sample preparation techniques used to prepare samples for GC analysis such as microwave assisted extraction, Soxhlet extraction, solid-phase extraction (SPE) and solid-phase membrane extraction (SPME). Identification of compounds is performed with our up-to-date NIST databases and spectral interpretation by our skilled mass spectroscopists.