Fluorometric liquid chromatographic determination of aliphatic aldehydes arising from lipid peroxides.

Abstract
A fluorometric method for the determination of aliphatic aldehydes using 1,3-cyclohexanedione reagent and high-performance liquid chromatography (HPLC) was developed. Straight-chain aldehydes of C3-C10 were reacted with 1,3-cyclohexanedione at 60.degree. C for 1 h and the fluorescent decahydroacridine derivatives2.3) formed were determined by HPLC on an ODS column. The calibration curves for the aldehydes were linear in the range of 0-10 ng and the relative standard deviation at the 5 ng level was about 2.3%. This method was sensitive enough to measure the amount of aliphatic aldehydes, including 4-hydroxynonenal, generated by microsomal peroxidation in rat liver.