SE8404316D0 - COULOMETRIC TITRATION CIRCUIT - Google Patents

COULOMETRIC TITRATION CIRCUIT

Info

Publication number
SE8404316D0
SE8404316D0 SE8404316A SE8404316A SE8404316D0 SE 8404316 D0 SE8404316 D0 SE 8404316D0 SE 8404316 A SE8404316 A SE 8404316A SE 8404316 A SE8404316 A SE 8404316A SE 8404316 D0 SE8404316 D0 SE 8404316D0
Authority
SE
Sweden
Prior art keywords
circuit
indicator
differential amplifier
electrode
amplifier
Prior art date
Application number
SE8404316A
Other languages
Swedish (sv)
Other versions
SE8404316L (en
SE457190B (en
Inventor
N Lenk
H Gressel
Original Assignee
Medizin Labortechnik Veb K
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 Medizin Labortechnik Veb K filed Critical Medizin Labortechnik Veb K
Publication of SE8404316D0 publication Critical patent/SE8404316D0/en
Publication of SE8404316L publication Critical patent/SE8404316L/en
Publication of SE457190B publication Critical patent/SE457190B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
    • G01N27/423—Coulometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
    • G01N27/44—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte using electrolysis to generate a reagent, e.g. for titration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A circuit arrangement for coulometric titration comprises a measuring cell (1) with a working electrode (9) auxiliary electrode (10) and indicating electrode means (7,8) an indicator circuit (11) fed by the indicator electrode means (7,8), an electrical decoupling stage (13), a generator circuit (12) and a measured value forming device (14). A differential amplifier for the indicator signal and a power amplifier for the generator circuit are united in a single amplifier (19) and the working electrode (9) is connected directly to the output of the differential amplifier (19), the auxiliary electrode (10) being connected to earth via a precision resistor (32) and the negative operating voltage input of the differential amplifier being connected directly to earth. A start- stop discriminator (22) is provided for controlling measure-value formation in A/D integrating converter 28 and is connected at its input to a point in the circuit which carries a voltage proportional to the indicator signal and to a desired- value setting device (26,27) for the end point of the titration. <IMAGE>
SE8404316A 1983-08-31 1984-08-30 CIRCUIT DEVICE FOR COULOMETRIC TITRATION SE457190B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD83254382A DD217316A1 (en) 1983-08-31 1983-08-31 CIRCUIT ARRANGEMENT FOR COULOMETRIC TITRATION

Publications (3)

Publication Number Publication Date
SE8404316D0 true SE8404316D0 (en) 1984-08-30
SE8404316L SE8404316L (en) 1985-03-01
SE457190B SE457190B (en) 1988-12-05

Family

ID=5550092

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8404316A SE457190B (en) 1983-08-31 1984-08-30 CIRCUIT DEVICE FOR COULOMETRIC TITRATION

Country Status (7)

Country Link
CH (1) CH665289A5 (en)
DD (1) DD217316A1 (en)
DE (1) DE3421975A1 (en)
FR (1) FR2551549A1 (en)
GB (1) GB2145828B (en)
IT (1) IT1221752B (en)
SE (1) SE457190B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2168224B1 (en) * 2000-10-20 2003-02-16 Univ Valencia Politecnica ELECTRO-OPTICAL PROCEDURE FOR ANALYSIS OF ELECTROCHEMICAL PROCESSES IN REAL TIME AND DEVICE FOR YOUR PRACTICE.
CN105223255B (en) * 2015-09-08 2019-04-12 王小云 A kind of intelligence chlorine residue fast detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE329023B (en) * 1967-06-06 1970-09-28 Jungner Instrument Ab
DD139765B2 (en) * 1975-11-13 1984-11-07 Georg Kaltenborn DEVICE FOR THE AMPEROMETRIC DEAD-STOP TITRATION
DD122285B1 (en) * 1975-11-13 1980-12-24 Georg Kaltenborn Apparatus for amperometric dead-stop titration

Also Published As

Publication number Publication date
GB2145828A (en) 1985-04-03
CH665289A5 (en) 1988-04-29
SE8404316L (en) 1985-03-01
GB8421006D0 (en) 1984-09-19
FR2551549A1 (en) 1985-03-08
IT8421833A0 (en) 1984-07-11
DE3421975A1 (en) 1985-03-21
IT1221752B (en) 1990-07-12
DD217316A1 (en) 1985-01-09
SE457190B (en) 1988-12-05
GB2145828B (en) 1987-04-15

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