Application of a New Potentiometric Sensor for Determination of Anionic Surfactants in Wastewater

Chemical and biochemical engineering quarterly

S. Petrušić¹  O. Galović¹  M. . Samardžić¹  M. Sak-Bosnar¹ 

关键词: anionic surfactant;    screen-printed;    microsensor;    potentiometric;    wastewater;   

DOI  :  10.15255/CABEQ.2014.2164

来源: Croatian Society of Chemical Engineers

【 摘 要 】

Abstract A new screen-printed potentiometric microsensor (SPMS) for the determination of anionic surfactants (ASs) based on the dimethyldioctadecylammonium-tetraphenylborate (DDA-TPB) ion pair as a sensing material was applied to real industrial effluents. The sensor is accurate, inexpensive, simple and very sensitive. The solutions of cetylpyridinium chloride (CPC) of the concentrations down to 5· 10–5 mol dm–3 were used as a titrant. Standard addition method was used for checking the precision and accuracy of measurements providing satisfactory results with recoveries between 98.3 to 102.0 % in pure AS solutions and 99.0 to 114.5 % in wastewater. Standard spectrophotometric method Methylene Blue Active Substances (MBAS) was used as control for comparison of the results obtained with the new sensor. The results obtained using SPMS were compared with those obtained by the polymeric membrane ion-selective electrodes (ISEs), containing the same sensing material, and exhibited good mutual agreement.

【 授权许可】

Unknown