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Method of estimating vitamin A in mixed feeds and additives

Method of estimating vitamin A in mixed feeds and additives

Vitaminnoe pitanie sel' skokhozyaistvennykh zhivotnykh: 37-44

An apparatus is described for the estimation and purifying of vitamin A in feeds containing different carotenes. The column is activated by Al2O3 in a system of acetone:hexane 4:96.

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