Standard No.:	GB/T 5009.85-2003
English Name:	Determination of riboflavin in foods
Chinese Name:	食品中核黄素的测定
Chinese Classification:	C53    Food sanitation
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ
Issued on:	2003-8-11
Implemented on:	2004-1-1
Status:	superseded
Superseded by:	GB 5009.85-2016 National Food Safety Standard-Determination of Vitamin B2 in Foods
Superseded on:	2017-1-23
Superseding:	GB/T 12391-1990 Method for determination of riboflavin in foods
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	224.0
Delivery:	via email in 1 business day

1 Scope This standard specifies determination methods of riboflavin content in foods- microbiological method and fluorescence method. This standard is applicable to the determination of riboflavin in various foods. Detection limit in this method: fluorescence method is 0.006μg; linear range: fluorescence method is 0.1/μg~20μg.

Contents Foreword I 1 Scope 2 Principle 3 Reagents 4 Instruments 5 Analysis Procedures 6 Result Calculation 7 Precision 8 Principle 9 Reagents 10 Instruments and Equipments 11 Preparation and Storage of Bacteria 12 Analysis Procedures 13 Result Calculation 14 Precision