title: Resonance light scattering spectroscopy of procyanidin-CPB-DNA ternary system and its potential application.
abstract: A new method for the determination of calf thymus DNA at nanogram level was proposed based on the enhanced resonance light scattering (RLS) signals of DNA in the presence of procyanidin and cetylpyridinium bromide dihydrate (CPB). Under the experimental conditions, the RLS intensity of DNA at 291.0 nm was greatly enhanced by procyanidin-CPB at pH 7.0. There was a good linear relationship (r=0.9993) between the enhanced RLS intensity (ΔI(RLS)) and DNA concentration of 0.0084-3.36 μg mL(-1). The limit of detection (LOD) was 2.27 ng mL(-1) (3S0/S). Three synthetic DNA samples were measured with satisfactory, and the recovery was 102.3-107.2%.
authors.affiliation: College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: College of Chemistry, Changchun Normal University, Changchun 130032, PR China. Electronic address: sy_bi@sina.com.
authors.forename: Shuyun
authors.initials: S
authors.lastname: Bi
authors.affiliation: College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
authors.forename: Huifeng
authors.initials: H
authors.lastname: Zhou
authors.affiliation: College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhao
mesh_terms: D000818:Animals; D044946:Biflavonoids / Q000737:chemistry*; D002392:Catechin / Q000737:chemistry*; D002417:Cattle; D002594:Cetylpyridinium / Q000737:chemistry*; D004247:DNA / Q000737:chemistry*; D008027:Light; D044945:Proanthocyanidins / Q000737:chemistry*; D012542:Scattering, Radiation
chemical_list: D044946:Biflavonoids; D044945:Proanthocyanidins; C017674:procyanidin; D002392:Catechin; D004247:DNA; C427203:calf thymus DNA; D002594:Cetylpyridinium
keywords: Cetylpyridinium bromide (CPB); DNA; Procyanidin; Resonance light scattering (RLS)