title: A mathematical model for calculating the shelf life of ascorbic acid solution under given conditions.
abstract: The objective of this paper is to calculate the shelf life of ascorbic acid solution under given conditions by using a mathematical model. An antioxidant, sodium metabisulfite, was added to the ascorbic acid solution. The kinetic parameters of the degradation reaction of ascorbic acid and sodium metabisulfite, were investigated, respectively, and then a mathematical model was developed. According to the mathematical model, the calculated shelf lives of ascorbic acid solution were 783, 835, 873, and 885 days for specifications 2, 5, 10, and 20 mL, respectively. The results showed that the obtained mathematical model can be used to calculate the shelf life of ascorbic acid solution under given conditions.
authors.affiliation: Leshan Vocational & Technical college, Leshan, Sichuan, PR China. fengjiafu1977@yahoo.cn
authors.forename: Jiafu
authors.initials: J
authors.lastname: Feng
authors.forename: Xiancheng
authors.initials: X
authors.lastname: Zhana
authors.forename: Shiwen
authors.initials: S
authors.lastname: Qiaob
authors.forename: Chaojun
authors.initials: C
authors.lastname: Wub
authors.forename: Longxiang
authors.initials: L
authors.lastname: Xiaob
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000378:metabolism; D001205:Ascorbic Acid / Q000737:chemistry* / Q000378:metabolism; D004355:Drug Stability; D004356:Drug Storage; D006207:Half-Life; D008962:Models, Theoretical; D012996:Solutions; D013447:Sulfites / Q000737:chemistry / Q000378:metabolism; D013997:Time Factors
chemical_list: D000975:Antioxidants; D012996:Solutions; D013447:Sulfites; C005200:sodium metabisulfite; D001205:Ascorbic Acid