发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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本标准规定了化妆品中维生素B(泛酸)及维生素原B(D-泛醇)测定的高效液相色谱紫外检测法和高效液相色谱串联质谱法两种方法。 本标准适用于化妆品中维生素B(泛酸)及维生素原B(D-泛醇)的定量测定,高效液相色谱紫外检测法对泛酸、D-泛醇的检出限为30 μg/g,定量限为100 μg/g。高效液相色谱串联质谱法对泛酸、D-泛醇的检出限为30 ng/g;定量限为100 ng/g。
Determination of vitamin B
本标准规定了饲料中维生素D的高效液相色谱法测定。 本标准第一法适用于配合饲料、浓缩饲料、复合预混合饲料、维生素预混合饲料中维生素D的测定,定量限为12.5 μg/kg(500 IU/kg)。 本标准第二法适用于维生素预混合饲料中维生素D的测定,定量限为125 mg/kg(5×10 IU/kg)。
Determination of vitamin D
本标准规定了婴幼儿食品和乳品中维生素A、D、E的测定方法。 本标准适用于婴幼儿食品和乳品中维生素A、D、E的测定。
National food safety standard Determination of vitamin A,D,E in foods for infans and young children,milk and milk products
本标准规定了饲料添加剂维生素D微粒产品的产品规格、要求、试验方法、检验规则、标签、包装、运输和贮存。 本标准适用于饲料添加剂维生素D油为原料,配以一定量2,6-二叔丁基-4-甲基苯酚(BHT)及(或)乙氧喹啉作稳定剂,采用明胶和淀粉等辅料制成的微粒。本品在饲料工业中作为维生素类饲料添加剂。 化学名称:9,10-开环胆甾5.7,10(19)三烯3β-醇 分子式:CHO 相对分子质量:3894.65(1999年国际相对原子质量)
Feed additive.Vitamin D
本标准规定了用液相色谱法测定维生素A、D、E的方法。 本标准适用于各种婴幼儿配方食品和乳粉中维生素A、D、E的测定。
Milk powder and formula foods for infant and young children--Determination of vitamin A,D,E content
本文件规定了25-羟基维生素D检测试剂盒(液相色谱-串联质谱法)的术语和定义、组成、技术要求、试验方法、检验规则、标识、标签、使用说明书、组配包装和运输贮存的要求。 本文件适用于采用液相色谱-串联质谱法,用于体外定量检测人体血清25-羟基维生素D2和25-羟基维生素D3的检测试剂盒。
Total 25-hydroxyl vitamin D testing kit(LC-MS-MS method)
本文件规定了老年人维生素D的补充指导原则、维生素D检测、评价及个性化补充、维生素D补充注意事项。
本文件规定了液态乳和乳粉中维生素A、D、E的测定原理及方法。
Determination of vitamin A, D, E in milk and milk powder by On-line solid phase extraction - heart cutting of two-dimensional liquid phase chromatography
1 范围 2 规范性引用文件 3 术语和定义 4 原理 5 试剂和材料 6 仪器和设备 7 分析和步骤 8 分析结果表述 9 精密度 10 其他
Determination of vitamin A 、vitamin D and vitamin E in health foods using column-switching technique
本标准规定了饲料添加剂 D-泛酸钙(维生素B5)的基本要求、技术要求、试验方法、检验规则、标志、包装、运输和贮存及质量承诺。 本标准适用于化学-酶法合成制得D-泛酸钙,该产品可用于饲料添加剂领域。 化学名称:(R)-N-(3,3-二甲基-2,4-二羟基-1-氧代丁基)-3-丙氨酸钙盐 CAS No.:137-08-6 分子式:C18H32CaN2O10 相对分子质量:476.54(按2016年国际相对原子质量) 化学结构式:
Feed additive─Dextro calcium pantothenate (vitamin B5)
Infant formula and adult nutritionals — Determination of vitamin D by liquid chromatography-mass spectrometry
Foodstuffs - Determination of vitamin E by high performance liquid chromatography - Measurement of ?-, ?-, ?- and ?-tocopherol
Milk and milk products. Determination of vitamin D mass fraction by high performance liquid chromatography method
Premixes. Methods for determination of vitamin A, D, E
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Foodstuffs - Determination of vitamin D by high performance liquid chromatography - Measurement of cholecalciferol (D3) or ergocalciferol (D2).
This European Standard specifies a method for the determination of the mass fraction of d-biotin by high performance liquid chromatography (HPLC). The method has been validated in an inter-laboratory test on fortified and non-fortifed samples such as cereal breakfast powder, infant milk powder, lyophilized green peas with ham, lyophilized chicken soup and on nutritive orange juice, at levels from 16 μg/100 g to 200 μg/100 g. For further information on the validation data, see Annex B. NOTE 1 d-biocytin can also be estimated byThis method. But none of the samples used for the validation step contained d-biocytin. Nonetheless the recovery rate is more than 90 % for d-biotin and d-biocytin, see [2] and [3]. NOTE 2 The method underestimates the real biotin content when used for samples containing egg.
Foodstuffs - Determination of d-biotin by HPLC
This European Standard specifies a method for the determination of vitamin D3 (cholecalciferol) or vitamin D2 (ergocalciferol) in foodstuffs by high performance liquid chromatography (HPLC). Vitamin D3 is primary in foodstuffs of animal origin, while vitamin D2 is primary in wild mushrooms. Both vitamin D3 and vitamin D2 can be present in fortified foodstuffs. This European Standard is not applicable for samples with a content of vitamin D3 and vitamin D2. Apart from the vitamin D activity from the parent forms, vitamin D3 and vitamin D2, the corresponding metabolites 25-hydroxy vitamin D and 1,25-dihydroxy vitamin D also contribute to the vitamin D activity. This European Standard does only include measurement of vitamin D3 or vitamin D2. This European Standard provides the base for the analytical methods. It is intended to serve as a frame in which the analyst can define his own analytical work in accordance to the standard procedure. This method has been validated in inter-laboratory tests on fortified and non-fortified samples such as margarine, milk, milk powder, liquid infant formula, infant formula, cooking oil, and fish oil at levels from 0,4 μg/100 g to 14 μg/100 g. Further information on the validation data is given in Annex D.
Foodstuffs - Determination of vitamin D by high performance liquid chromatography - Measurement of cholecalciferol (D3) or ergocalciferol (D2)
Dried skimmed milk.Determination of vitamin D content using high-performance liquid chromatography
本标准规定了饲料添加剂维生素D油产品的要求、试验方法、检验规则及标签、包装、贮存、运输。 本标准适用于由维生素D溶于符合饲料卫生要求的植物油中,含有适量的稳定剂如抗氧化剂等,用于制备饲料添加剂维生素D微粒,其维生素D含量不得低于50万IU/g,制得的维生素D油。 化学名称:胆钙化醇 分子式:CHO 相对分子质量:384.6(2001年国际相对原子质量)。
Feed additive. Vitamin D
This International Standard specifies a method for the determination of vitamin D in a test sample containing at least 10 μg of vitamin D per 100 g [equal to 400 International Units (IU) of vitamin D per 100 g] by using high-performance liquid chromatography (HPLC). The results of the determination are only reliable if, in the case of determination of vitamin D3, the test sample contains only vitamin D3, and no vitamin D2 (which will be added as an internal standard) and, in the case of determination of vitamin D2, the test sample contains only vitamin D2 and no vitamin D3 (which will be added as an internal standard). This is to be verified by the procedure carried out without the addition of the internal standard (vitamin D2).
Dried skimmed milk - Determination of vitamin D content using high-performance liquid chromatography
Protein-vitamin-mineral and amide-vitamin-mineral additives. Methods for the determination of retinol-acetat (vitamin A), argokalciferol (holekalciferol) (vitamin D), tokoferol-acetate (vitamin E)
This International Standard specifies a method for the determination of vitamin D in a test sample containing at least 10 μg of vitamin D per 100 g [equal to 400 International Units (IU) of vitamin D per 100 g] by using high-performance liquid chromatography (HPLC). The results of the determination are only reliable if, in the case of determination of vitamin D3, the test sample contains only vitamin D3, and no vitamin D2 (which will be added as an internal standard) and, in the case of determination of vitamin D2, the test sample contains only vitamin D2 and no vitamin D3 (which will be added as an internal standard). This is to be verified by the procedure carried out without the addition of the internal standard (vitamin D2).
Dried skimmed milk - Determination of vitamin D content using high-performance liquid chromatography
Dried skimmed milk — Determination of vitamin D content using high-performance liquid chromatography
This European Standard specifies a method for the determination of vitamin D in foodstuffs by high performance liquid chromatography (HPLC). In the majority of foodstuffs vitamin D is naturally present as cholecalciferol, vitamin D3, and this is the form of the vitamin determined. Vitamin D2, ergocalciferol, is sometimes present in fortified foodstuffs and can also be determined using this European Standard. Some foods will contain both vitamin D3 and D2. This method is not applicable to these samples.
Foodstuffs - Determination of vitamin D by high perfomance liquid chromatography - Measurement of cholecalciferol (D3) and ergocalciferol (D2)
Настоящий стандарт распространяется на премиксы и устанавливает хроматографические методы определения витаминов А, D, E в премиксах с раз
Premixes. Methods for determination of vitamins A, D, E