Fixed Oil (Fatty Acids) Analysis
Fixed oils comprised of triglycerides, diglycerides and free fatty acids can be derivatised into methyl esters of component fatty acids and profiled by GC. These fingerprints are compared to compendial and in-house specifications for authentication purposes. The same process can also be used for quantitative analysis of individual fatty acids. Beyond this tri- and diglycerides can be analysed by HPLC-MS to ascertain their respective fatty acid composition and chain sequence. Typical services include authentication of vegetable oils and quantitative determination of EPA/DHA in fish oils.
Updated: 11 June 2013