Notes: Long-chain Fatty Acid Methyl Ester Mixture contains five saturated and mono- and poly-unsaturated long-chain fatty acid methyl esters. It is intended for use as a reference standard for the detection of long-chain fatty acids in various sample types by GC-MS. This mixture is supplied in an amber ampule in which the headspace has been purged with nitrogen/argon to prevent lipid oxidation. [Matreya, LLC. Catalog No. 1095]