本标准规定了饲料中维生素B2(即核黄素C17H20N10)测定的荧光分光光度法和高效液相色谱法。
本标准方法1适用于动物性和植物性饲料原料、配合饲料、浓缩饲料中维生素B2的测定,定量限为0.25 mg/kg。
本标准方法2适用于维生素预混合饲料、复合预混合饲料、浓缩饲料中维生素B2的测定,以荧光检测器检测时,定量限为5 mg/kg;以紫外检测器检测时,定量限为10 mg/kg。
浓缩饲料中维生素B2的测定,方法1为仲裁法;维生素预混合饲料、添加剂预混合饲料中维生素B2的测定,方法2中的高效液相色谱荧光检测器方法为仲裁法。
定价: 29元 / 折扣价: 25 元 加购物车
This standard specifies requirements, test method, inspection rule, label, packaging, transport, storage and shelf life for feed additives of vitamin D3 (powder form) products.
This standard is applicable to common type feed additive vitamin D3 (powder form) and water-dispersible type feed additive vitamin D3 (powder form) which use feed additive vitamin D3 oil as raw material, and add a certain amount of antioxidants and excipients. The excipients used for common type feed additive vitamin D3 (powder form) include gelatin, starch and etc. The excipients used for water-dispersible type feed additive vitamin D3 (powder form) include maltodextrin, emulsifier and etc. Excipients shall comply with the provisions of Catalogue of Feed Materials, Approved Feed Additives and Hygienical Standard for Feeds.
定价: 360元 / 折扣价: 306 元 加购物车
This standard specifies the product requirements, test method, inspection rule, and label, packaging, transport, storage and shelf life of feed additive menadione sodium bisulfite(vitamin K3).
This standard is applicable to the chemical synthetic feed additive menadione sodium bisulfite(vitamin K3) which compounds with monohydrate to trihydrate.
定价: 360元 / 折扣价: 306 元 加购物车