POLAROGRAPHIC INVESTIGATION OF CONJUGATED FAT-SOLUBLE VITAMINS.
The half-wave potentials of all-trans beta-carotene, all-trans retinol, 13-cis retinol, all-trans retinyl acetate, all-trans retinal, and vitamins D(2) and D(3) were related to the number of double bonds in conjugation. A minimum of three double bonds in conjugation was required before reduction took place at the dropping-mercury electrode. As the number of conjugated bonds increased in the fat-soluble vitamins, the initial reduction took place at a lower half-wave potential. All of the waves were linearly proportional to the concentration of the vitamins in the concentration range studied.
D002338:Carotenoids; D002762:Cholecalciferol; D004224:Diterpenes; D011048:Polarography; D000084562:Retinyl Esters; D014801:Vitamin A; D014807:Vitamin D; D014815:Vitamins; D019207:beta Carotene
D004224:Diterpenes; D000084562:Retinyl Esters; D014815:Vitamins; D019207:beta Carotene; D014801:Vitamin A; D014807:Vitamin D; D002762:Cholecalciferol; D002338:Carotenoids; C009166:retinol acetate
CAROTENE; CHOLECALCIFEROL; POLAROGRAPHY; VITAMIN A; VITAMIN D