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Citation: Xu Weijian, Liu Yan, Gao Hong. OSCILLOGRAPHIC INDICATION TECHNIQUE IN KINETICALLY CONTROLLED ANALYSIS Ⅰ. DETERMINATIONS OF REDUCING SUBSTANCES WITH KBrO₃-KBr-HCI SYSTEM[J]. Chinese Journal of Applied Chemistry, ;1989, 6(6): 74-76. shu

OSCILLOGRAPHIC INDICATION TECHNIQUE IN KINETICALLY CONTROLLED ANALYSIS Ⅰ. DETERMINATIONS OF REDUCING SUBSTANCES WITH KBrO₃-KBr-HCI SYSTEM

1.
Department of Chemistry, Nanjing University

Received Date: 30 December 1988
Available Online: 26 June 1989

This paper reports the use of the oscillographic indication technique in the kinetic method of analysis.The product resulted from the kinetic reaction in KBrO₃-KBr-HCl system is used as a titrant and the zero current oscillographic bipotentiometric titration technique is used to indicate the end point. The results obtained with KBrO₃-KBr-HCl system show that this method can be used to determine reducing substances such as As(Ⅲ),ascorbic acid,ete.and has a sensitivity about 10^-6-10^-7mol/dm³.This method is directly visible and rapid and needs only simple equipment.
- Oscillographic indication technique,
- Oscillographic bipotentiometry,
- Kinetic method of analysis
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OSCILLOGRAPHIC INDICATION TECHNIQUE IN KINETICALLY CONTROLLED ANALYSIS Ⅰ. DETERMINATIONS OF REDUCING SUBSTANCES WITH KBrO3-KBr-HCI SYSTEM

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OSCILLOGRAPHIC INDICATION TECHNIQUE IN KINETICALLY CONTROLLED ANALYSIS Ⅰ. DETERMINATIONS OF REDUCING SUBSTANCES WITH KBrO₃-KBr-HCI SYSTEM