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Anal Biochem. 1985 Nov 1;150(2):369-78.

Quantitative determination of the lipid peroxidation product 4-hydroxynonenal by high-performance liquid chromatography.


4-Hydroxynonenal is a product formed in tissue and tissue fractions from polyunsaturated membrane lipids through a free radical-induced lipid peroxidation process. The biological properties of this aldehyde have been studied in many respects. This article describes for the first time a sensitive and reproducible method for quantitative analysis of 4-hydroxynonenal in biological samples as well as in lipid-containing foodstuffs. The method involves extraction of the aldehyde by dichloromethane from cells or microsomes trapped on an Extrelut column. Oils and foodstuffs are extracted with excess water. After additional sample cleanup by solid-phase extraction on a disposable octadecyl silica gel (ODS) extraction column, the sample is analyzed by high-performance liquid chromatography using an ODS column and methanol/water 65/35 (v/v) or acetonitrile/water 40/60 (v/v) as eluant; the detection wavelength is 220 nm. The method developed has a high precision with coefficients of variation of 1.4% (microsomes) to 3.5% (olive oil). The recovery depends on the sample type and lies between 45% (control microsomes) and 96% (solution of hydroxynonenal in water). The method has been used for the determination of 4-hydroxynonenal in microsomes, platelets, and various foodstuffs.

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