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首页> 外文期刊>American Journal of Analytical Chemistry >A Simple and Rapid Method for the Detection of Non-Ionic Surfactants
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A Simple and Rapid Method for the Detection of Non-Ionic Surfactants

机译：一种简单快速的非离子表面活性剂检测方法

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A spectrophotometric approach for the detection of non-ionic surfactant (Triton X-100) has been proposed in this paper. This method does not involve extraction of the ion-associate with harmful solvents, but employs adhesion of the ion-association of potassiumon-ionic surfactants complex and tetraphenylporphyrin tetrasulfonic acid obtained by vigorous shaking. The adhered ion-associate was dissolved with water and its absorbance was measured. The sensitivity for Triton X-100 was determined to be 0.146 (expressed as absorbance of 1 mg/L solution). The adhesion tendency of ion-associate was found to be dependent on the water contact angle, which in turn was influenced by a high adhesion of the ion-associate and by low blank values. In this respect, a tetrafluo-roethylene vessel was found to be the most suitable for the detection of non-ionic surfactants. This spectrophotometrical method is simply and rapidly performed by a procedure based on mechanical shaking and can be employed to detect non-ionic surfactants containing more than 7 polyethylene oxide units.
机译：本文提出了一种用于检测非离子表面活性剂（Triton X-100）的分光光度法。该方法不涉及用有害溶剂萃取离子缔合体，而是采用钾/非离子表面活性剂络合物与通过剧烈摇动得到的四苯基卟啉四磺酸的离子缔合体的粘附。将附着的离子缔合体溶解于水，测定吸光度。经测定，Triton X-100的灵敏度为0.146（表示为1 mg / L溶液的吸光度）。发现离子缔合剂的粘附趋势取决于水接触角，而水接触角又受离子缔合剂的高粘附力和低空白值的影响。在这方面，发现四氟乙烯容器最适合于检测非离子表面活性剂。该分光光度法可通过基于机械摇动的程序简单快速地执行，可用于检测包含7个以上聚环氧乙烷单元的非离子表面活性剂。

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