title: Synchronous fluorescence determination of ferulic acid with Ce(IV) and sodium tripolyphosphate.
abstract: In this study, a synchronous fluorescence detection method for ferulic acid (FA) is proposed based on a redox reaction between FA and Ce(IV) sulfate in dilute sulfuric acid medium at room temperature. It was found that FA could reduce Ce(IV) to Ce(III) in acidic medium, and sodium tripolyphosphate could further enhance the intrinsic fluorescence of the Ce(III) produced. The enhanced extent of synchronous fluorescence intensity was in proportion to the concentration of FA over the range 3.0 × 10(-8) to 1.0 × 10(-5) mol/L. The corresponding limit of determination (S/N = 3) was 1.3 × 10(-8) mol/L. The proposed method was applied to the determination of sodium ferulate for injection sample with satisfactory results.
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, People's Republic of China.
authors.forename: F
authors.initials: F
authors.lastname: Meng
authors.forename: P
authors.initials: P
authors.lastname: Liu
authors.forename: F
authors.initials: F
authors.lastname: Huang
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: X
authors.initials: X
authors.lastname: Wu
authors.forename: L
authors.initials: L
authors.lastname: Shen
mesh_terms: D002563:Cerium / Q000737:chemistry*; D003373:Coumaric Acids / Q000737:chemistry*; D010084:Oxidation-Reduction; D011122:Polyphosphates / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D003373:Coumaric Acids; D011122:Polyphosphates; D002563:Cerium; C004999:ferulic acid; C005692:triphosphoric acid
keywords: Ce(IV); ferulic acid; sodium tripolyphosphate; synchronous fluorescence