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Citation: Hu Xiaoya, Leng Zongzhou. OSCILLOGRAPHIC POTENTIOMETRIC ACID-BASE TITRATION WITH POLYANILINE MODIFIED ELECTRODE Ⅰ.ACID-BASE TITRATION IN AQUEOUS SOLUTION[J]. Chinese Journal of Applied Chemistry, ;1990, 7(1): 91-93. shu

OSCILLOGRAPHIC POTENTIOMETRIC ACID-BASE TITRATION WITH POLYANILINE MODIFIED ELECTRODE Ⅰ.ACID-BASE TITRATION IN AQUEOUS SOLUTION

Hu Xiaoya ,
Leng Zongzhou

1.
Department of Chemistry, Yangzhou Teachers' College, Yangzhou 225002

Received Date: 27 March 1989
Available Online: 17 May 1989

Using polyaniline modified electrode as an indicator electrode and calomel electrode as a reference electrode, the oscillographic potentiometric acid-base titrations were per-formed successfully in aqueous solutions containing strong acids or bases, weak acids orbases, polyprotontic acids or mixtures of bases. In comparison with biplatinum acid-base oscillo-potentiometric titration this method gives more distinct potential breaks and the stoichiometric point can be observed easily with good roproducibility.
- oscillographic potentiometric titration,
- acid-base titration,
- polyaniline modified electrode
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