| 用双波长紫外光度法测定SDBSPAAm混合溶液中SDBS的含量 |
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| 引用本文： | 吕荣湖,周东玲.用双波长紫外光度法测定SDBSPAAm混合溶液中SDBS的含量[J].中国石油大学学报(自然科学版),1999(2). |
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| 作者姓名： | 吕荣湖 周东玲 |
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| 作者单位： | 石油大学环境中心,北京,102200 |
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| 摘 要： | 针对在三元复合化学驱机理和应用配方研究中需要解决的混合溶液中表面活性剂浓度的定量分析问题，建立了一种用双波长紫外系数倍率法测定十二烷基苯磺酸钠聚丙烯酰胺（ＳＤＢＳＰＡＡｍ）混合溶液中ＳＤＢＳ含量的方法，同时考察了ＰＡＡｍ、ＳＤＢＳ、ＮａＣｌ和Ｃａ２＋的浓度以及ＰＡＡｍ的类型和溶液的ｐＨ值等因素对测定结果的影响。该方法的测定波长为２２２．３ｎｍ和２１４．９ｎｍ，用系数倍率关系式Ａ＝２Ａ１－Ａ２进行处理后，ＳＤＢＳ的吸光度只与其浓度有关，从而消除了ＰＡＡｍ的干扰。双波长紫外系数倍率法简便、快速、准确，变异系数小于１％
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| 关 键 词： | 表面活性剂 混合溶液 紫外分光光度法 定量分析 十二烷基苯磺酸钠 聚丙烯酰胺 |
DETERMINATION OF CONCENTRATION OF SODIUM DODECYLBENZEN SULFONATE IN MIXED SOLUTION BY DUAL-WAVELENGTH ULTRAVIOLET SPECTROPHOTOMETRIC METHOD |
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| Lü Ronghu,Zhou Dongling.DETERMINATION OF CONCENTRATION OF SODIUM DODECYLBENZEN SULFONATE IN MIXED SOLUTION BY DUAL-WAVELENGTH ULTRAVIOLET SPECTROPHOTOMETRIC METHOD[J].Journal of China University of Petroleum,1999(2). |
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| Authors: | Lü Ronghu Zhou Dongling |
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| Abstract: | Quantitative analysis of sodium dodecylbenzen sulfonate
(SDBS) is an essential aspect on the investigations of mechanism and application of combined
chemical flooding composed of surfactant, polymer and alkali. A dual wavelength ultraviolet
spectrophotometry has been used for determining concentration of SDBS in the mixed solution
of SDBS and polyarylamide (PAAm). The effects of PAAm, SDBS, NaCl, Ca 2 , pH value were
studied. The wavelength is 222.3 nm and 214.9 nm, and absorbance of SDBS relates to its
concentration. The operation of this method is simple, quick and exact, and coefficient of
variation is less than 1%. |
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| Keywords: | surfactant mixed solution ultraviolet spectrophotometry quantitative analysis sodium dodecylbenzen sulfonate polyarylamide |
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