SCHEDULED MAINTENANCE
A method is given for the determination of vitamin A in animal feeds. The sample is saponified with ethanolic potassium hydroxide solution and the vitamin A extracted into light petroleum and transferred into propan-2-ol. The concentration of vitamin A in this solution is determined by HPLC using an octadecylsilane stationary phase.
Analytical Methods Committee, Analyst, 1985, 110, 1019 DOI: 10.1039/AN9851001019
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