Aluminium(III)-selective electrode based on a newly synthesized glyoxal-<Emphasis Type="Italic">bis</Emphasis>-thiosemicarbazone Schiff base |
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Authors: | Y Li Y Chai R Yuan W Liang L Zhang G Ye |
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Institution: | (1) College of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Analytical Chemistry, Southwest University, Chongqing, 400715, China |
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Abstract: | A PVC membrane electrode for Al3+ based on glyoxal-bis-thiosemicarbazone (GBTC) as an ion carrier was developed. The electrode exhibits a Nernstian slope of 20.1 mV per decade and a linear range of 1.8
× 10−5−1.0 × 10−1 M for Al(NO3)3 with a detection limit of 8.7 × 10−6 M. It has a fast response time of about 10 s and can be used for at least 1 month. The proposed membrane sensor revealed
a good selectivity for Al3+ over a wide variety of other metal ions and could be used in the pH range of 2.5–4.5.
The text was submitted by the authors in English. |
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