| 摘要: |
| 以离子液体1-丁基-3-甲基咪唑六氟磷酸盐(BmimPF6)为活性物质制得离子选择性电极,该电极对离子液体BmimCl有较好的电位响应,线性响应浓度范围为1×10-5~1 ×10-2 mol/L.用十二烷基硫酸钠(SDS)与BmimPF6进行阴离子交换制得的1-丁基-3-甲基咪唑十二烷基硫酸盐(BmimDS)作为活性物质,能降低电极的检测下限,线性响应浓度范围拓展为1×10-6~1 ×10-2 mol/L.该电极显示出良好的稳定性和重现性.此外,该电极可作为电位滴定法的指示电极用于对四丁基氯化铵(TBACl)、十二烷基硫酸钠(SDS)的滴定分析. |
| 关键词: 离子选择性电极 离子液体 电位滴定法 1-丁基-3-甲基咪唑十二烷基硫酸盐 |
| DOI： |
| 分类号: |
| 基金项目:上海师范大学校重点学科基金 |
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| The ion-selective PVC membrane electrode based on 1-butyl-3-methylimidazolium dodecyl sulfate |
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ZHANG Tingting, WANG Rong, SHEN Qianyu, LUO Zongqian, WU Fang, CAO Xiaowei, WU Xiaqin
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College of Life and Environment Sciences,Shanghai Normal University
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| Abstract: |
| 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. |
| Key words: ion selective electrode ionic liquid potentiometric titration 1-butyl-3-methylimidazolium dodecyl sulfate |
