Standard No.:	GB/T 14700-2002
English Name:	of vitamin B1 in feeds
Chinese Name:	饲料中维生素B1的测定
Chinese Classification:	B46    Livestock and poultry feed and additive
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ
Issued on:	2002-10-31
Implemented on:	2003-4-1
Status:	superseded
Superseded by:	GB/T 14700-2018 Determination of thiamine in feed
Superseded on:	2018-12-1
Superseding:	GB/T 14700-1993 Method for the determination of Vitamin B1 in feeds
Target Language:	English
File Format:	PDF
Word Count:	3500 words
Translation Price(USD):	100.0
Delivery:	via email in 1~3 business day

本标准规定了用荧光分光光度仪和高效液相色谱仪测定饲料中维生素B1（硫胺素）含量的两种方法。 本标准规定的方法1适用于饲料原料、配合饲料、浓缩饲料、复合预混合饲料、维生素预混合饲料中的维生素B1的测定。萃取液的溶液范围为0.02μg/Ml～0.2μg/Ml(在有吸附硫胺素或影响硫色素荧光干扰物质存在的情况，本方法不适用)。 本标准规定的方法2适用于维生素B1含量大于20mg/kg的复合预混合饲料、维生素预混合饲料的测定。