This Standard specifies methods for the determination of vitamin D in foods. Method 1 – 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 2 – Online column switching - reversed-phase liquid chromatography applies to the determination of vitamin D2 and vitamin D3 in foods. Method 3 – Liquid chromatography - tandem mass spectrometry applies to the determination of vitamin D2 and vitamin D3 in foods. Method 1 – Normal phase chromatography purification – reversed-phase liquid chromatography.
Basic Data
Standard ID
GB 5009.296-2023 (GB5009.296-2023)
Description (Translated English)
National food safety standard - Determination of Vitamin K2 in foods
Sector / Industry
National Standard
Classification of Chinese Standard
X09
Word Count Estimation
7,792
Date of Issue
2023-09-06
Date of Implementation
2024-03-06
Issuing agency(ies)
National Health Commission of the People's Republic of China, State Administration for Market Regulation
Summary
This standard specifies the liquid chromatography method for the determination of menaquinone, heptamenaquinone and nonamenaquinone content in food. This standard is applicable to the determination of the three vitamin K2 types of menaquinone, heptamenaquinone and nonamenaquinone in milk and dairy products, special dietary foods, fermented soy products, and meat and meat products.
