化工进展 ›› 2022, Vol. 41 ›› Issue (4): 2075-2081.doi: 10.16085/j.issn.1000-6613.2021-0748

• 精细化工 • 上一篇    下一篇

β-环糊精对曲拉通X-114紫外光谱抗干扰性能的影响

许慧华(), 石东坡(), 吴浩, 尹先清, 郑延成, 陈武, 李赓   

  1. 长江大学石油石化污染控制与处理国家重点实验室,湖北 荆州 434023
  • 收稿日期:2021-04-09 修回日期:2021-05-19 出版日期:2022-04-23 发布日期:2022-04-25
  • 通讯作者: 石东坡 E-mail:xuhuihua2020@126.com;shidongpo2006@126.com
  • 作者简介:许慧华(1994-),女,硕士研究生,主要从事表面活性剂光谱分析方面的研究。E-mail:xuhuihua2020@126.com
  • 基金资助:
    国家自然科学基金(41202111);湖北省自然科学基金(2015CFB189);长江大学长江人才计划(2016cqr03)

Effect of β-cyclodextrin on anti-interference performance of Triton X-114 ultraviolet spectrum

XU Huihua(), SHI Dongpo(), WU Hao, YIN Xianqing, ZHENG Yancheng, CHEN Wu, LI Geng   

  1. State Key Laboratory of Petroleum Pollution Control, Yangtze University, Jingzhou 434023, Hubei, China
  • Received:2021-04-09 Revised:2021-05-19 Online:2022-04-23 Published:2022-04-25
  • Contact: SHI Dongpo E-mail:xuhuihua2020@126.com;shidongpo2006@126.com

摘要:

辛基苯基聚氧乙烯醚(曲拉通X-114)和脂肪醇聚氧乙烯醚(AEO-9)之间的相互作用能对水溶液中曲拉通X-114的紫外光谱产生明显影响。实验结果表明,在200~350nm范围内,曲拉通X-114的最大吸收波长为223nm,AEO-9的紫外吸光度接近于0;在水溶液中,AEO-9能减弱曲拉通X-114的紫外吸光度,降幅达3.4%;AEO-9还能显著降低曲拉通X-114的表观临界胶束浓度(cmc),当AEO-9的浓度从0增加到0.050mmol/L 和0.100mmol/L时,曲拉通X-114的表观cmc从0.219mmol/L分别降至0.207mmol/L和0.202mmol/L。实验结果进一步表明,β-环糊精(β-CD)能有效降低AEO-9对曲拉通X-114的紫外吸光度及表观cmc的影响,在曲拉通 X-114和AEO-9复配水溶液中,按物质的量比1∶1加入β-CD,复配水溶液中曲拉通X-114的回收率从95.8%~103.3%变化至99.0%~100.1%,表明了β-CD能明显降低AEO-9对曲拉通X-114的干扰作用。红外光谱表征结果(FTIR)、核磁共振氢谱表征(1H NMR)及热重差热分析表征结果(TG-DSC)表明,曲拉通X-114进入β-CD 分子空腔并形成包结物,是阻断曲拉通X-114分子形成混合胶束以及消除AEO对曲拉通X-114的干扰的主要原因。

关键词: 辛基苯基聚氧乙烯醚, β-环糊精, 胶束, 紫外光谱

Abstract:

The interaction between octyl phenyl polyoxyethylene ether (Triton X-114) and fatty alcohol polyoxyethylene ether (AEO-9) could significantly affect the ultraviolet spectrum of Triton X-114 in aqueous solution. The experimental results indicated that the maximum absorption wavelength of Triton X-114 was 223nm in the range of 200—350nm, and the ultraviolet absorbance of AEO-9 was close to 0. In aqueous solution, AEO-9 can decrease the UV absorbance of Triton X-114 by 3.4%. AEO-9 also significantly decreased the apparent critical micelle concentration (cmc) of Triton X-114 from 0.219mmol/L to 0.207mmol/L and 0.202mmol/L, respectively when the concentration of AEO-9 increased from 0 to 0.050mmol/L and 0.100mmol/L. Experimental results further showed that β-cyclodextrin (β-CD) can effectively reduce the AEO-9 on the ultraviolet absorbance of the Triton X-114 and the influence of apparent cmc. When the Triton X-114 and AEO-9 distribution in aqueous solution with the amount of substance ratio 1∶1 to join the β-CD, the recovery of Triton X-114 in the mixed aqueous solution changed from 95.8%—103.3% to 99.0%—100.1%. It was suggested that the β-CD can significantly reduce the interference of AEO-9 on Triton X-114. The results of Fourier transform infrared spectroscopy analysis (FTIR), nuclearmagnetic resonance hydrogen spectrum (1H NMR) analysis and thermogravimetric-differential thermal analysis (TG-DSC) showed that Triton X-114 entered β-CD molecular cavity and formed inclusion, which was the main reason for blocking the formation of mixed micelles of Triton X-114 molecule and eliminating the interference of AEO-9 to Triton X-114.

Key words: Triton X-114, β-CD, micelle, UV spectra

中图分类号: 

  • O625.151