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GB 5009.296-2023 English PDF (GB5009.296-2023)

GB 5009.296-2023 English PDF (GB5009.296-2023)

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GB 5009.296-2023: National food safety standard - Determination of Vitamin D in foods
This Standard specifies methods for the determination of vitamin D in foods. Method I ¨C Normal phase chromatography purification - reversed-phase liquid chromatography applies to the determination of vitamin D2 and vitamin D3 in foods containing ergocalciferol or cholecalciferol. Method II ¨C Online column switching - reversed-phase liquid chromatography applies to the determination of vitamin D2 and vitamin D3 in foods. Method III ¨C Liquid chromatography - tandem mass spectrometry applies to the determination of vitamin D2 and vitamin D3 in foods. Method I ¨C Normal phase chromatography purification ¨C reversed-phase liquid chromatography.

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