JPS6465441A - Instrument for measuring electrolyte concentration - Google Patents

Instrument for measuring electrolyte concentration

Info

Publication number
JPS6465441A
JPS6465441A JP22031487A JP22031487A JPS6465441A JP S6465441 A JPS6465441 A JP S6465441A JP 22031487 A JP22031487 A JP 22031487A JP 22031487 A JP22031487 A JP 22031487A JP S6465441 A JPS6465441 A JP S6465441A
Authority
JP
Japan
Prior art keywords
potential level
potential
measurement
memory
soln
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP22031487A
Other languages
Japanese (ja)
Inventor
Akiko Tanaka
Toshio Takiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP22031487A priority Critical patent/JPS6465441A/en
Publication of JPS6465441A publication Critical patent/JPS6465441A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE:To detect early an abnormal state by measuring the potential level of an electrolyte soln., then comparing the potential levels of the calibration liquid before and after this measurement with each other. CONSTITUTION:The liquid (sample soln. or calibration liquid) which is to be measured and is housed in reaction tube 2 is sucked by a suction pump 3 and is supplied to an ion selective electrode 1. The concn. (potential level) of the calibration liquid measured by the electrode 1 is applied as electromotive force to a preampifier 4 to be amplified and is converted by an AD converter 5 to a digital signal which is then controlled by a CPU 6 and is stored in a memory 7. The potential level of the sample soln. is similarly measured by the electrode 1 and this data is stored in the memory 7. The data of the potential levels before and after the measurement are taken out of the memory 7 after the measurement of the potential level of the sample soln. The two potential levels are compared by the CPU 6 and the result of the comparison is outputted to an output device 8.
JP22031487A 1987-09-04 1987-09-04 Instrument for measuring electrolyte concentration Pending JPS6465441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22031487A JPS6465441A (en) 1987-09-04 1987-09-04 Instrument for measuring electrolyte concentration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22031487A JPS6465441A (en) 1987-09-04 1987-09-04 Instrument for measuring electrolyte concentration

Publications (1)

Publication Number Publication Date
JPS6465441A true JPS6465441A (en) 1989-03-10

Family

ID=16749199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22031487A Pending JPS6465441A (en) 1987-09-04 1987-09-04 Instrument for measuring electrolyte concentration

Country Status (1)

Country Link
JP (1) JPS6465441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008133121A1 (en) * 2007-04-17 2008-11-06 Arkray, Inc. Method for measuring substrate concentration and apparatus for measuring substrate concentration

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131951A (en) * 1984-07-25 1986-02-14 Horiba Ltd Concentration meter with abnormality judging function

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6131951A (en) * 1984-07-25 1986-02-14 Horiba Ltd Concentration meter with abnormality judging function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008133121A1 (en) * 2007-04-17 2008-11-06 Arkray, Inc. Method for measuring substrate concentration and apparatus for measuring substrate concentration
JPWO2008133121A1 (en) * 2007-04-17 2010-07-22 アークレイ株式会社 Substrate concentration measuring method and substrate concentration measuring apparatus
JP5054765B2 (en) * 2007-04-17 2012-10-24 アークレイ株式会社 Substrate concentration measuring method and substrate concentration measuring apparatus
US8535510B2 (en) 2007-04-17 2013-09-17 Arkray, Inc. Method for measuring substrate concentration and apparatus for measuring substrate concentration

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