Title of article
Ionic liquid salt bridge based on tributyl(2-methoxyethyl)phosphonium bis(pentafluoroethanesulfonyl)amide for stable liquid junction potentials in highly diluted aqueous electrolyte solutions
Author/Authors
Sakaida، نويسنده , , Hideaki and Kitazumi، نويسنده , , Yuki and Kakiuchi، نويسنده , , Takashi، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2010
Pages
4
From page
663
To page
666
Abstract
A moderately hydrophobic ionic liquid, tributyl(2-methoxyethyl)phosphonium bis(pentafluoroethanesulfonyl)amide ([TBMOEP+][C2C2N−]), shows a very stable liquid junction potential upon contact with an aqueous solution whose ionic strength is as low as 1 μmol dm−3. The stability with the maximum excursion of the potential within ±0.5 mV for 30 min is very promising for accurate determination of pH and other single ion activities potentiometrically.
Keywords
Single ion activity , Tributyl(2-methoxyethyl)phosphonium , bis(pentafluoroethanesulfonyl)amide , Distribution potential , Standard ion transfer potential , Ionic liquids , salt bridge , Low ionic strength , Ionic liquid salt bridge , Phase-boundary potential , Liquid junction potential , PH , Phosphonium
Journal title
Talanta
Serial Year
2010
Journal title
Talanta
Record number
1661286
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