Summary - vitamin K - Revision history

https://eurofir-wiki.metrofood-services.eu/index.php?action=history&feed=atom&title=Summary_-_vitamin_K Summary - vitamin K - Revision history 2026-04-15T10:22:32Z Revision history for this page on the wiki MediaWiki 1.32.1 https://eurofir-wiki.metrofood-services.eu/index.php?title=Summary_-_vitamin_K&diff=863&oldid=prev Admin: 2 revisions imported 2019-05-09T13:33:10Z

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Admin https://eurofir-wiki.metrofood-services.eu/index.php?title=Summary_-_vitamin_K&diff=861&oldid=prev Admin: Created page with "==== EN 14148:2003 Foodstuffs - Determination of vitamin K1 by HPLC: ==== '''Scope''' This European Standard specifies a method for the determination of vitamin K<sub>1</sub..." 2017-05-12T15:31:18Z

<p>Created page with "==== EN 14148:2003 Foodstuffs - Determination of vitamin K1 by HPLC: ==== '''Scope''' This European Standard specifies a method for the determination of vitamin K<sub>1</sub..."</p> <p><b>New page</b></p><div>==== EN 14148:2003 Foodstuffs - Determination of vitamin K1 by HPLC: ====<br /> <br /> '''Scope'''<br /> <br /> This European Standard specifies a method for the determination of vitamin K<sub>1</sub> in foodstuffs by high performance liquid chromatography (HPLC). The determination of vitamin K<sub>1</sub> content is carried out by measurement of reduced phylloquinone. The method has been validated for milk and infant formula, however laboratory experiences exist which show that the method is also applicable to other type of foodstuffs.<br /> <br /> '''Principle'''<br /> <br /> After enzymatic removal of fat from the sample vitamin K<sub>1</sub> is determined in an appropriate sample solution by high performance liquid chromatography separation coupled with post-column reduction and subsequent fluorometric detection. Vitamin K<sub>1</sub> isomers are quantified as a single unresolved peak with a C<sub>18</sub> column.<br /> <br /> '''Precision data'''<br /> <br /> * [https://metrofood-wiki.foodcase-services.com/index.php?title=Precision+data+-+vitamin+K1 link to detailed data]</div>

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