β-环糊精对聚氧乙烯-8-辛基苯基醚紫外光谱抗干扰性能研究  

Study on the anti-interference performance of β-cyclodextrin to the ultraviolet spectrum of Triton X-100

作　　者：黄弘毅 尹先清[1] 靖波[2,3] 王秀军 陈文娟[2,3] 李赓 石东坡[1] HUANG Hong-yi;YIN Xian-qing;JING Bo;WANG Xiu-jun;CHEN Wen-juan;LI Geng;SHI Dong-po(State Key Laboratory of Petroleum Pollution Control,Yangtze University,Jingzhou,Hubei 434023,China;State Key Laboratory of Offshore Oil Exploitation,Beijing 100027,China;CNOOC Research Institute,Beijing 100027,China)

机构地区：[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 [2]海洋石油高效开发国家重点实验室,北京100027 [3]中海油研究总院,北京100027

出　　处：《日用化学工业》2020年第1期1-7,共7页China Surfactant Detergent & Cosmetics

基　　金：国家科技重大专项资助（2016ZX05025-003）;国家自然科学基金资助项目（41202111）;长江大学长江人才计划资助项目（2016cqr03）

摘　　要：聚氧乙烯-8-辛基苯基醚(曲拉通X-100)和十二烷基三甲基溴化铵(DTAB)之间的相互作用,能对复配水溶液中曲拉通X-100的紫外光谱信号产生明显影响。研究结果表明,DTAB不仅能增强水溶液中曲拉通X-100的吸光度,还能降低曲拉通X-100的表观临界胶束浓度cmc。当DTAB的浓度从0增加到0.100和0.200mmol/L时,曲拉通X-100的表观cmc从0.187g/L分别降至0.170和0.154g/L。在曲拉通X-100和DTAB复配水溶液中,按n(曲拉通X-100)︰n(β-环糊精)=1︰1加入β-环糊精,不仅能有效减少曲拉通X-100和DTAB间的相互作用而且可以增强曲拉通X-100紫外光谱信号强度,二者复配水溶液中曲拉通X-100回收率从92.0%~97.3%增加到98.8%~102.2%,曲拉通X-100浓度的检测精度显著提高。Job’s实验结果和FT-IR结果表明,曲拉通X-100分子进入β-环糊精分子空腔形成包结物,是β-环糊精消除各种相互作用对曲拉通X-100紫外光谱产生干扰的主要原因。The interactions between polyethylene glycol tert-octylphenyl ether(Triton X-100)and dodecyl trimethyl ammonium bromide(DTAB)has significant effects on the ultraviolet spectral signals of Triton X-100 in the aqueous mixture.The results show that DTAB can increase the absorbance of Triton X-100 in aqueous solution and also has a remarkable influence on the apparent critical micelle concentration(cmc)of Triton X-100,where the apparent cmc values of Triton X-100 are reduced from 0.187 g/L to 0.170 and 0.154 g/L when the concentration of DTAB increase from 0 to 0.100 and 0.200 mmol/L,respectively.Addingβ-cyclodextrin(β-CD)by molar ratio of 1∶1 between Triton X-100 andβ-CD in the aqueous mixture of Triton X-100 and DTAB can not only effectively reduce the interactions between Triton X-100 and DTAB,but also enhance the ultraviolet signal intensity of Triton X-100.Thus,the recovery rates of Triton X-100 change from 92.0%-97.3%to 98.8%-102.2%,which indicate that the measurement accuracy of Triton X-100 has been greatly improved.The results of Job’s experiment and infrared spectrum show that,β-CD can eliminate the interference(arising from other coexisting components)to the UV spectra of Triton X-100,which is primarily attributed to the formation of inclusion complexes with Triton X-100 molecules entering into the cavities ofβ-CD molecules.

关 键 词：聚氧乙烯-8-辛基苯基醚 Β-环糊精 胶束 紫外光谱 

分 类 号：TQ423[化学工程]