SECONDARY DIFFERENTIAL OSCILLOGRAPHIC CHRONOPOTEN-TIOMETRIC TITRATION OF Ca,Mg AND VERY WEAK ACIDS

Chinese Journal of Applied Chemistry ›› 1990, Vol. 0 ›› Issue (5): 83-85.

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SECONDARY DIFFERENTIAL OSCILLOGRAPHIC CHRONOPOTEN-TIOMETRIC TITRATION OF Ca,Mg AND VERY WEAK ACIDS

Weng Yunrong, Chen Xinwen, Yuan Xiaojian, Cao Hong

Department of chemistry, Nanjing University, Nanjing 210008

Received:1989-11-17 Revised:1990-01-10 Published:1990-10-10 Online:1990-10-10

Abstract

Abstract: The secondary differential oscillographic chronopotentiometric titration has been carried out for Ca, Mg, boric acid and phenic acid determenition. The incision on the d²E/dt² curves produced by the depolarizers is more sharp than that on the dE/dt-E curver. The indication of the end point of titration has been greatly improved.

Key words: differential oscillopollarography, chronoptentiometric titration, calcium, magnesium, phenol, boric acid

Weng Yunrong, Chen Xinwen, Yuan Xiaojian, Cao Hong. SECONDARY DIFFERENTIAL OSCILLOGRAPHIC CHRONOPOTEN-TIOMETRIC TITRATION OF Ca,Mg AND VERY WEAK ACIDS[J]. Chinese Journal of Applied Chemistry, 1990, 0(5): 83-85.

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SECONDARY DIFFERENTIAL OSCILLOGRAPHIC CHRONOPOTEN-TIOMETRIC TITRATION OF Ca,Mg AND VERY WEAK ACIDS

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