石油化工2025，Vol.54Issue(11)：1629-1635,7.DOI:10.3969/j.issn.1000-8144.2025.11.012
基于羟丙基-β-环糊精屏蔽作用检测高矿化度复配体系中的十二烷基苯磺酸三乙醇胺盐
Detection of triethanolamine dodecylbenzenesulfonate in high salinity compound system based on shielding effect of hydroxypropyl-β-cyclodextrin
摘要
Abstract
A modified ultraviolet spectroscopy method was developed based on the shielding effect of hydroxypropyl-β-cyclodextrin(HP-β-CD)for detecting triethanolamine dodecylbenzenesulfonate(LAS-TEA)in the complex solution of alkyl polyoxyethylene ether-3(AEO-3)and LAS-TEA at high salinity.The effect of HP-β-CD on shielding interference of AEO-3 and inorganic salts with LAS-TEA was verified.The experimental results show that the absorbance of LAS-TEA at the maximum absorption wavelength of 223 nm decreases from 1.915 to 1.775,while the apparent critical micelle concentration(CMC)of LAS-TEA decreases from 0.108 mmol/L to 0.083 mmol/L in LAS-TEA/AEO-3 simulated mineralized water,indicating that AEO-3 and inorganic salts can change the absorbance and apparent CMC of LAS-TEA.After the addition of HP-β-CD with LAS-TEA/HP-β-CD molar inclusion ratio of 1 in simulated mineralized water,the apparent CMC of LAS-TEA is no longer detected,the absorbance change is only 0.25％,and the recovery rate reaches 98.52％-99.65％.From this,it can be seen that HP-β-CD can significantly reduce the interference of AEO-3 and inorganic salts with LAS-TEA in the compound system.The FTIR and 1H NMR analysis show that the LAS-TEA molecules can enter into the HP-β-CD cavity to form the inclusion complexes,which is the key to the anti-interference effect of HP-β-CD.关键词
十二烷基苯磺酸三乙醇胺盐/脂肪醇与环氧乙烷缩合物/紫外光谱/羟丙基-β-环糊精Key words
triethanolamine dodecylbenzenesulfonate/alcohol ethoxylate/ultraviolet spectroscopy/hydroxypropyl-β-cyclodextrin分类
化学工程引用本文复制引用
蒋双泽,贾飞,徐传友,白叶雷,侯超凡,石东坡..基于羟丙基-β-环糊精屏蔽作用检测高矿化度复配体系中的十二烷基苯磺酸三乙醇胺盐[J].石油化工,2025,54(11):1629-1635,7.基金项目
国家自然科学基金项目(41202111) （41202111）
中国石油科技创新基金项目(2019D-5007-0503) （2019D-5007-0503）
中国石油集团公司西部钻探工程有限公司资助项目(2025XZ006). （2025XZ006）
