title: Disposable sensor for measurement of vitamin B(2) in nutritional premix, cereal, and milk powder.
abstract: Methodologies for the determination of vitamin B(2) in food matrixes and a premix using simple sample conditioning steps coupled with a convenient and cheap electrochemical sensing device are presented. Electrochemical analysis based on differential pulse voltammetry (DPV) coupled to carbon electrodes gave a well-defined reduction peak at -0.42 V versus a Ag/AgCl quasi-reference electrode. Using a straightforward sample preparation step, vitamin B(2) can be measured successfully in a nutritional premix and food products. Standard additions of riboflavin were used to confirm the analyte concentrations and to provide precision data.
authors.affiliation: Luton Institute of Research in the Applied Natural Sciences, University of Luton, The Spires, 2 Adelaide Street, Luton LU1 5DU, United Kingdom. rashid.kadara@luton.ac.uk
authors.forename: Rashid O
authors.initials: RO
authors.lastname: Kadara
authors.forename: Barry G D
authors.initials: BG
authors.lastname: Haggett
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Birch
mesh_terms: D000818:Animals; D004209:Disposable Equipment; D004355:Drug Stability; D002523:Edible Grain / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D005504:Food Analysis / Q000295:instrumentation* / Q000379:methods*; D005519:Food Preservation; D006863:Hydrogen-Ion Concentration; D008892:Milk / Q000737:chemistry*; D015203:Reproducibility of Results; D012256:Riboflavin / Q000032:analysis*
chemical_list: D012256:Riboflavin