title: [Study on quantitative mechanism and the interference of the UV spectrum of HABS reduced by β-Cyclodextrin].
abstract: A novel ultraviolet absorption spectrometry method was developed for the quantitative determination of HABS by adding β-cyclodextrin with the molar ratio of 1:1 in strong interference aqueous solution. The results indicated that the effect of several common interfering flooding agents (SAS, OP-10, HPAM) on the determination of HABS could be greatly reduced in β- cyclodextrin aqueous solution. Thus, the determination errors of the determined HABS were less than 2.0% under strong inter- ference, and the detection limit (S/N==3) of the method could be also as high was 8.3-9.1 x 10(-4) mg · L(-1). Various characterization results including 1H-NMR, TG-DSC and FTIR showed the interaction between β-cyclodextrin and HABS. The results of H-NMR analysis showed that HABS molecule could enter into the interior of the cavity of β-cyclodextrin molecule. TG-DSC analysis exhibited that the stable inclusion of β-cyclodextrin and HABS could be automatically formed. The interactions between the functional groups of β-cyclodextrin and HABS were showed by FTIR analysis, which also exhibited that the stable inclusion could be formed by HABS entering from the narrow or the broad mouth of the β-cyclodextrin. The interference of the UV spectrum of HABS could be reduced by β-cyclodextrin since the interaction between β-cyclodextrin due to the interaction between β-cyclodextrin and HABS in the inclusion complex.
authors.forename: Dong-Po
authors.initials: DP
authors.lastname: Shi
authors.forename: Xian-Qing
authors.initials: XQ
authors.lastname: Yin
authors.forename: Yan-Cheng
authors.initials: YC
authors.lastname: Zheng
authors.forename: Wu
authors.initials: W
authors.lastname: Chen
authors.forename: Jia-Xin
authors.initials: JX
authors.lastname: Fu
authors.forename: Zhao-Hua
authors.initials: ZH
authors.lastname: Ren
mesh_terms: D013056:Spectrophotometry, Ultraviolet; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D047392:beta-Cyclodextrins