ČSN EN ISO 6867 (467020)

Animal feeding stuffs - Determination of vitamin E content - Method using high-performance liquid chromatography



STANDARD published on 1.10.2011


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The information about the standard:

Designation standards: ČSN EN ISO 6867
Classification mark: 467020
Catalog number: 89182
Publication date standards: 1.10.2011
SKU: NS-169089
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

The category - similar standards:

Animal feeding stuffs

Annotation of standard text ČSN EN ISO 6867 (467020):

Tato mezinárodní norma specifikuje metodu vysokoúčinné kapalinové chromatografie pro stanovení obsahu vitaminu E (DL- -tokoferolu) v krmivech pro hospodářská a domácí zvířata. Zkušební podíl vzorku se saponifikuje ethanolovým roztokem hydroxidu draselného a vitamin E se extrahuje do petroletheru. Petrolether se odstraní odpařováním a zbytek se rozpustí v hexanu. Koncentrace vitaminu E v extraktu hexanu se stanoví kapalinovou chromatografií na normální fázi za podmínek, které oddělují DL tokoferol od ostatních tokoferolů

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