title: A novel chemiluminescent flow-injection analysis of transferrin by its reduction of the luminol--hydrogen peroxide reaction catalysed by meso-tetra-(3-methoxyl-4-hydroxyl) phenyl manganese porphyrin.
abstract: Based on the inhibition effect of transferrin (Tf) on the reaction of the luminol-hydrogen peroxide (H(2)O(2)) chemiluminescence (CL) system, catalysed by meso-tetra-(3-methoxyl-4-hydroxyl) phenyl manganese porphyrin (MnP) as a mimetic enzyme of peroxides, a sensitive flow-injection CL method has been developed for the determination of Tf in an alkaline medium. The CL reaction was carefully investigated by examining the variations of reaction conditions. Under optimum conditions, the linear range for the determination of transferrin was 0.04-20.0 μg/mL and the detection limit was 1.62 ng/mL. This proposed method was sensitive, convenient and simple, and has been successfully applied to the determination of transferrin in a serum sample.
authors.affiliation: School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
authors.forename: Dan
authors.initials: D
authors.lastname: Wu
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Han
authors.forename: Qin
authors.initials: Q
authors.lastname: Wei
authors.forename: Yanfang
authors.initials: Y
authors.lastname: Zhao
authors.forename: Kexia
authors.initials: K
authors.lastname: Mao
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Cai
authors.forename: Ru
authors.initials: R
authors.lastname: Li
authors.forename: Yuxue
authors.initials: Y
authors.lastname: Dai
mesh_terms: D017022:Flow Injection Analysis / Q000379:methods*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D049449:Luminescence; D008165:Luminol / Q000737:chemistry*; D008665:Metalloporphyrins / Q000737:chemistry*; D014168:Transferrin / Q000032:analysis*
chemical_list: D008665:Metalloporphyrins; D014168:Transferrin; C571238:meso-tetra-(3-methoxyl-4-hydroxyl) phenyl manganese porphyrin; D008165:Luminol; D006861:Hydrogen Peroxide