GB996903A - Improvements relating to titration apparatus - Google Patents

Improvements relating to titration apparatus

Info

Publication number
GB996903A
GB996903A GB392861A GB392861A GB996903A GB 996903 A GB996903 A GB 996903A GB 392861 A GB392861 A GB 392861A GB 392861 A GB392861 A GB 392861A GB 996903 A GB996903 A GB 996903A
Authority
GB
United Kingdom
Prior art keywords
potential
reference voltage
titration apparatus
electrolysed
resistor
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.)
Expired
Application number
GB392861A
Inventor
Eustace Lionel Erne Harrington
Rodney Sylvester Roche
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB392861A priority Critical patent/GB996903A/en
Priority to FR886692A priority patent/FR1313497A/en
Publication of GB996903A publication Critical patent/GB996903A/en
Expired legal-status Critical Current

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
    • G01N27/44—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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

996,903. Automatic titration apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 30, 1962 [Feb. 2, 1961], No. 3928/61. Heading G1N. [Also in Division G4] Titration apparatus comprises a constant current regulator 12 for supplying current to an electrolytic cell 11, a working electrode potential sensing device 18, and means 17 for decreasing stepwise the regulated current level in response to a predetermined value of the potential sensed by the device. Preferably the rate of operation of a timing device is simultaneously decreased. Regulator 12 is variable by an error signal output from a comparison amplifier 13 the inputs to which are the potential drop across resistor 14, which p.d. depends on the call current, and a reference voltage from a standard cell (not shown). Oscillator 15 supplies timing pulses to a register 16. The potential sensing device 18 is connected to a standard calomel electrode 19 and controls a switch 17, which in turn controls the oscillator frequency and the reference voltage. When a predetermined potential (the maximum potential at which the most readily electrolysed constituent only is electrolysed) is reached the reference voltage and pulse frequency are halved, and this process is repeated each time the potential reaches the predetermined value (up to, say, ten reductions). The total number of pulses counted is a measure of the quantity of selected constituent. In a modification the reference voltage is maintained constant and resistor 14 is doubled at each step.
GB392861A 1961-02-02 1961-02-02 Improvements relating to titration apparatus Expired GB996903A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB392861A GB996903A (en) 1961-02-02 1961-02-02 Improvements relating to titration apparatus
FR886692A FR1313497A (en) 1961-02-02 1962-02-01 Titration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB392861A GB996903A (en) 1961-02-02 1961-02-02 Improvements relating to titration apparatus

Publications (1)

Publication Number Publication Date
GB996903A true GB996903A (en) 1965-06-30

Family

ID=9767540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB392861A Expired GB996903A (en) 1961-02-02 1961-02-02 Improvements relating to titration apparatus

Country Status (1)

Country Link
GB (1) GB996903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237387A (en) * 1989-09-25 1991-05-01 Petrochem Analysis Limited Coulometric titration system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237387A (en) * 1989-09-25 1991-05-01 Petrochem Analysis Limited Coulometric titration system
GB2237387B (en) * 1989-09-25 1994-05-11 Petrochem Analysis Limited Titration methods and devices

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