Chromatography is a powerful technique for identifying and quantifying mixed quantities of materials. CPG offers multiple types of chromatography analytical techniques. CPG routinely performs extractions analysis of materials, providing identification and quantification of materials such as plasticizers, pigments, antioxidants, and monomers. Additionally, elution and extraction analysis of mobile materials is required by regulatory agencies for most biomedical devices. CPG specializes in chromatography analysis of degradable materials and has been able to identify and quantify degradation products of biodegradable implants used in animal studies. These studies allow researchers to better understand the degradation kinetics and form of degradation reaction, while also performing a risk analysis on the degradation products. CPG also performs trace solvent analysis on medical devices and pharmaceutical products with reference to USP <467> "Residual Solvents." Analysis of material additives in polymeric constructs is critical for deformulation of competitor products. Water quality can be determined with gas chromatography according to ISO 9377-2 "Water Quality - Determination of Hydrocarbon Oil Index."