Title:
【発明の名称】プロセス流における電気化学的活性成分の測定方法及びその装置
Document Type and Number:
Japanese Patent JP2543907
Kind Code:
B2
Abstract:
A method and apparatus for determining electrochemically active components in a process stream is disclosed. The method comprises the steps of providing a sample in which the components are contained, and depositing the components onto a working electrode, altering the environment of the working electrode so that it is immersed in a supporting electrolyte by effecting a matrix exchange and stripping the deposit electrochemically active components from the working electrode into the supporting electrode. A method and apparatus utilize a measurement cell which comprises a vessel (10) for containing the supporting electrolyte and a mercury electrode (150). A flow injector (16) is used to inject a flow with the sample electrolyte into the vessel so that the sample electrolyte surrounds the mercury drop electrode and then sinks away from the mercury drop electrode (150) to the bottom of the vessel where it is removed via an outlet (20) to thereby leave the mercury electrode (150) immersed in supporting electrolyte. The deposited impurities are stripped from the supporting electrolyte using variable time domain transient electrochemical stripping voltammetry. The sequence of steps including the deposition of the impurities from an injected flow of electrolyte sample are repeated under microprocessor control (50).
Inventors:
ORIBAA EMU JII NYUUMAN
ARAN EMU BONDO
ROJAA DABURYUU NAITO
ARAN EMU BONDO
ROJAA DABURYUU NAITO
Application Number:
JP22822587A
Publication Date:
October 16, 1996
Filing Date:
September 11, 1987
Export Citation:
Assignee:
EREKUTORORITEITSUKU JINKU CO OBU OOSUTORAREISHIA LTD
International Classes:
C25C1/16; G01N27/48; G01N27/26; G01N27/34; G01N27/42; G01N; (IPC1-7): G01N27/48; G01N27/26
Domestic Patent References:
| JP61210940A | ||||
| JP57110954A | ||||
| JP54103095A |
Attorney, Agent or Firm:
Honda Kodaira (2 outside)