{"id":335917,"date":"2024-10-19T23:28:11","date_gmt":"2024-10-19T23:28:11","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-20-30396933-dc-2020\/"},"modified":"2024-10-25T22:25:13","modified_gmt":"2024-10-25T22:25:13","slug":"bsi-20-30396933-dc-2020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-20-30396933-dc-2020\/","title":{"rendered":"BSI 20\/30396933 DC 2020"},"content":{"rendered":"

This document specifies a method for the determination of the content of the total vitamin A (retinol), vitamin E (\u03b1-tocopherol) and vitamin D3<\/sub> (cholecalciferol) content in animal feed using solid phase extraction (SPE) clean-up and high-performance liquid chromatography (HPLC).<\/p>\n

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\n NOTE 1\n <\/div>\n

The procedure enables also determination of vitamin D2<\/sub> but with the use of another internal standard. The method is fully validated only for vitamin D3<\/sub>.<\/p>\n<\/div>\n

The method has been successfully tested in collaborative trial for complete feed for broilers, pigs, and turkey, for premixture for broilers and piglets, for complementary feed for cows and mineral feed within the following ranges:<\/p>\n