Study on Quantitative Mechanism and the Interference of the UV Spectrum of HABS Reduced by beta-Cyclodextrin

作者：Shi Dong po^*; Yin Xian qing; Zheng Yan cheng; Chen Wu; Fu Jia xin; Ren Zhao hua

来源：Spectroscopy and Spectral Analysis, 2014, 34(9): 2460-2465.

DOI：10.3964/j.issn.1000-0593(2014)09-2460-06

• beta-cyclodextrin
• HABS
• Inclusion complex
• UV spectra
• Quantitative analysis

A novel ultraviolet absorption spectrometry, method was developed for the quantitative determination of HABS by adding beta-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 beta-cyclodextrin aqueous solution. Thus, the determination errors of the determined HABS were less than 2.0% under strong interference, and the detection limit (S/N=3) of the method could be also as high was 8.3 similar to 9.1x10(-1) mg . L-1 Various characterization results including H-1-NMR, TG-DSC and FTIR showed the interaction between beta-cyclodextrin and HABS. The results of 1H-NMR analysis showed that HABS molecule could enter into the interior of the cavity of beta-cyclodextrin molecule. TG-DSC analysis exhibited that the stable inclusion of beta-cyclodextrin and HABS could be automatically formed. The interactions between the functional groups of beta-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 beta-cyclodextrin. The interference of the UV spectrum of HABS could be reduced by beta-cyclodextrin since the interaction between beta-cyclodextrin due to the interaction between beta-cyclodextrin and HABS in the inclusion complex.

• 出版日期2014-9
• 单位长江大学