The ion-selective PVC membrane electrode based on 1-butyl-3-methylimidazolium dodecyl sulfate

• Main Authors: ZHANG Tingting, WANG Rong, SHEN Qianyu, LUO Zongqian, WU Fang, CAO Xiaowei, WU Xiaqin
• Format: Article
• Language: English
• Published: Academic Journals Center of Shanghai Normal University 2012-08-01
• Series: Journal of Shanghai Normal University (Natural Sciences)
• Subjects: ion selective electrode; ionic liquid; potentiometric titration; 1-butyl-3-methylimidazolium dodecyl sulfate
• Online Access: http://qktg.shnu.edu.cn/zrb/shsfqkszrb/ch/reader/create_pdf.aspx?file_no=201204008&year_id=2012&quarter_id=4&falg=1

Ion selective electrode using BmimPF₆ as active material was fabricated.The electrode showed a good response to ionic liquid BmimCl,with linear response range from 1×10^-5 mol/L to 1 ×10^-2 mol/L.With 1-butyl-3-methylimidazolium dodecyl sulfate (BminDS) as active material,could further reduce the electrode detection limit,and the linear response range expanded to be 1×10^-6~1×10^-2 mol/L.The electrode showed good stability and reproducibility.The electrode was also used as the sensing electrode in the potentiometric titration of tetrabutylammonium chloride and SDS.