CAJ | 학술논문

通过在重烷基苯磺酸盐类表面活性剂（HABS）的水溶液中加入摩尔比为1∶1的β-环糊精，利用的紫外吸收光谱检测存在强干扰影响时的HABS含量。结果表明，β-环糊精具有明显降低三采复配驱油剂中十六烷基磺酸钠（SAS）、烷基酚聚氧乙烯醚（OP-10）及聚丙烯酰胺（HPAM ）等常用组分对 HABS定量产生的干扰影响，能显著降低 HABS的检测误差至2.0％以内，该方法的检出限（S/N＝3）为8.3～9.1×10-4 mg · L -1。通过1 H-NMR ，TG-DSC及FT-IR表征研究了 HABS分子与β-环糊精分子之间的相互作用。1 H-NMR结果表明了HABS分子已进入了β-环糊精分子的内部空腔；TG-DSC结果表明没有自由态的 HABS存在，HABS分子与β-环糊精分子已形成了包结物；FT-IR的表征结果显示了 HABS分子与β-环糊精分子之间的官能团作用。结合这些表征结果推测出 HABS分子可以沿着β-环糊精的内腔径向大、小口径端2个方向进入β-环糊精的内腔并形成了稳定的包结物。包结物中HABS与β-环糊精之间的相互作用是β-环糊精降低强干扰体系中HABS紫外光谱干扰的主要原因。
통과재중완기분광산염류표면활성제（HABS）적수용액중가입마이비위1∶1적β-배호정，이용적자외흡수광보검측존재강간우영향시적HABS함량。결과표명，β-배호정구유명현강저삼채복배구유제중십륙완기광산납（SAS）、완기분취양을희미（OP-10）급취병희선알（HPAM ）등상용조분대 HABS정양산생적간우영향，능현저강저 HABS적검측오차지2.0％이내，해방법적검출한（S/N＝3）위8.3～9.1×10-4 mg · L -1。통과1 H-NMR ，TG-DSC급FT-IR표정연구료 HABS분자여β-배호정분자지간적상호작용。1 H-NMR결과표명료HABS분자이진입료β-배호정분자적내부공강；TG-DSC결과표명몰유자유태적 HABS존재，HABS분자여β-배호정분자이형성료포결물；FT-IR적표정결과현시료 HABS분자여β-배호정분자지간적관능단작용。결합저사표정결과추측출 HABS분자가이연착β-배호정적내강경향대、소구경단2개방향진입β-배호정적내강병형성료은정적포결물。포결물중HABS여β-배호정지간적상호작용시β-배호정강저강간우체계중HABS자외광보간우적주요원인。
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 × 10-4 mg · L -1 .Various charac-terization results including 1 H-NMR ,TG-DSC and FTIR showed the interaction between β-cyclodextrin and HABS .The results of 1 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 spec-trum of HABS could be reduced by β-cyclodextrin since the interaction between β-cyclodextrin due to the interaction betweenβ-cyclodextrin and HABS in the inclusion complex .