`
`European Patent Office
`
`Office européen des brevets
`
`lllllllllllllllllllllllllllllllllllllllllllilllllllllllllllllll
`
`(11)
`
`EP 1 369 684 A1
`
`(12)
`
`EUROPEAN PATENT APPLICATION
`published in accordance with Art. 158(3) EPC
`
`{48) Date of publication:
`10.12.2003 ButIetin 2003150
`
`(21) Application number: 027321913
`
`(51) in: 01.7: com 271327
`
`(88) international application number:
`PCT/J P02100204
`
`(22) Date of filing: 15.01.2002
`
`(87) international publication number:
`we 021057?er (25.07.2002 Gazette 2002130)
`
`
`(84) Designated Contracting States:
`AT BE CH CY DE DK ES FI FR GB GR IE ITLI LU
`MC NL PT SE TR
`
`Designated Extension States:
`AL LT LV MK RO SI
`
`(7'2)
`'
`
`1
`
`inventors:
`lKETAKl, Kazuo clo ARKRAY, Inc.
`Kyoto~shi, Kyoto 601-8045 (JP)
`lNOUE, Yoichi c/o ARKRAY, Inc.
`Kyoto-shi, Kyoto 601-8045 (JP)
`
`(30) Priority: 17.01.2001 JP 2001008953
`
`(71) Applicant: ARKRAY, inc.
`Kyoto~shi, Kyoto 601-8045 (JP)
`
`(74) Representative: Pluckrose, Anthony William at at
`BOULT WADE TENNANT,
`Verulam Gardens
`
`7'0 Gray’s inn Road
`London WMX SBT (GB)
`
`
`QUANTITATIVE ANALYZtNG METHOD AND QUANTITATIVE ANALYZER USING SENSOR
`
`(54)
`
`A quantitative analyzing method is provided for
`(57)
`electrochemically measuring the concentration of a sub—
`stance in a sample liquid using a sensor including a re-
`agent layer (30) which contains a reagent for reacting
`with the substance and to which {30) the sample liquid
`ls introduced, and a first electrode (22) and a second
`electrode (23) for applying a voltage to the reagent layer
`(30). The method includes a current measuring steptor
`
`apptying a voltage across theftrst electrode (22) and the
`second electrode (23) for measuring current flowing be-
`tween the first and the second electrodes (22,23), a pa~
`rameter calculating step for calculating a parameter
`based on the measured current, and at determining step
`for determining a state of the sample liquid introduced
`to the reagent layer (30) based on the parameter and at
`least one predetermined constant.
`
`FIGS
`
`
`
`Printed by Jouve. 75001 PARKS (FR)
`
`EP1369684A1
`
`BNSDOCFU: <EP
`
`1369584Al __I,_>
`
`
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