ELECTRODE SYSTEM AND METHOD FOR EVALUATING ELECTROCHEMICAL STATE OF SOLUTION BY USING THE SAME

Japanese Patent JP3924490

B2

PROBLEM TO BE SOLVED: To provide an electrode system which can simply and accurately measure an electrochemical state of a solution to be measured without using a reference electrode containing a chlorine ion by forming the flow of a plating liquid and a current distribution in one-dimension and to provide a method for measuring the electrochemical state using the same.
SOLUTION: The electrode system comprises: an electrode holder having a sample electrode and the reference electrode; and an opposite electrode provided separately from the holder. The holder is formed of a non-conductive material having a cylindrical hole closed at one end. The sample electrode is provided at a bottom of the hole. The reference electrode is provided at an arbitrary position of the peripheral wall of the hole. The method for evaluating the electrochemical state of the solution comprises the steps of: maintaining a flowing direction of the ion between the sample electrode and the reference electrode constant; and measuring a potential between the sample electrode and the opposite electrode while comparing with the potential of the reference electrode.

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Keisuke Hayafusa
Hiroshi Yokota
Hiroshi Hachiho
Koji Mishima

JP2002105130A

June 06, 2007

April 08, 2002

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Ebara Corporation

G01N27/48; G01N33/20; C25D17/10; C25D21/12; G01N27/30; G01N27/416; (IPC1-7): G01N27/48; C25D17/10; C25D21/12; G01N27/30; G01N27/416; G01N33/20

JP2001228115A
JP5106100A
JP2000193640A
JP2002020900A
JP2002098670A
JP10510917A

Nobuo Ono

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