FR2292977A1 - Continuous monitoring of the concentration of complex solutions - by using selective electrodes immersed in a constant volume cell - Google Patents

Continuous monitoring of the concentration of complex solutions - by using selective electrodes immersed in a constant volume cell

Info

Publication number
FR2292977A1
FR2292977A1 FR7536370A FR7536370A FR2292977A1 FR 2292977 A1 FR2292977 A1 FR 2292977A1 FR 7536370 A FR7536370 A FR 7536370A FR 7536370 A FR7536370 A FR 7536370A FR 2292977 A1 FR2292977 A1 FR 2292977A1
Authority
FR
France
Prior art keywords
concn
cell
soln
solute
measurement
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.)
Granted
Application number
FR7536370A
Other languages
French (fr)
Other versions
FR2292977B1 (en
Inventor
Rene Denis
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.)
European Atomic Energy Community Euratom
Original Assignee
European Atomic Energy Community Euratom
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 European Atomic Energy Community Euratom filed Critical European Atomic Energy Community Euratom
Publication of FR2292977A1 publication Critical patent/FR2292977A1/en
Application granted granted Critical
Publication of FR2292977B1 publication Critical patent/FR2292977B1/fr
Granted 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
    • G01N27/4166—Systems measuring a particular property of an electrolyte
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
    • G06G7/75—Analogue computers for specific processes, systems or devices, e.g. simulators for component analysis, e.g. of mixtures, of colours

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Mathematical Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

A continuous constant stream of soln. from the main flow is mixed with a fixed amt. of dilutant, e.g. de-ionised distilled water, and pumped to a constant vol. cell. A selective electrode for each solute, the concns. of which it is required to measure, protrudes into the cell and the ionisation concn. is fed to a pH meter. The pH meter gives out in turn, an analogous voltage "u" which is relayed to a calculator. This calculator, using the equation: calculates the concn. of the solute in the undiluted stream from the signal obtd. from the diluted flow, and transmits the value to a recorder. Used for continuous determination of concn. of ionised solutes in complex solns. esp. liq. streams from reactors, e.g. measurement of HBr in an aqs. soln. formed by hydrolysis of Ca Br2 to produce hydrogen. Gives accurate measurement within 2% error and the response time for the measurement is short and depends on the distance of the cell from the sample point. Allows continuous checks of solns. with no limit on the concn. of the solute in soln.
FR7536370A 1974-11-27 1975-11-27 Continuous monitoring of the concentration of complex solutions - by using selective electrodes immersed in a constant volume cell Granted FR2292977A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU71368A LU71368A1 (en) 1974-11-27 1974-11-27

Publications (2)

Publication Number Publication Date
FR2292977A1 true FR2292977A1 (en) 1976-06-25
FR2292977B1 FR2292977B1 (en) 1978-09-22

Family

ID=19727808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7536370A Granted FR2292977A1 (en) 1974-11-27 1975-11-27 Continuous monitoring of the concentration of complex solutions - by using selective electrodes immersed in a constant volume cell

Country Status (6)

Country Link
BE (1) BE835940A (en)
DE (1) DE2552654C3 (en)
DK (1) DK534175A (en)
FR (1) FR2292977A1 (en)
LU (1) LU71368A1 (en)
NL (1) NL7513838A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624975A1 (en) * 1987-12-21 1989-06-23 Total France PROCESS FOR THE CONTINUOUS ANALYSIS OF CHLORIDE IONS PRESENT IN HEAD WATER OF A HYDROCARBON DISTILLATION COLUMN AND ANALYZER FOR CARRYING OUT SAID METHOD

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2624975A1 (en) * 1987-12-21 1989-06-23 Total France PROCESS FOR THE CONTINUOUS ANALYSIS OF CHLORIDE IONS PRESENT IN HEAD WATER OF A HYDROCARBON DISTILLATION COLUMN AND ANALYZER FOR CARRYING OUT SAID METHOD
EP0322289A1 (en) * 1987-12-21 1989-06-28 Total Raffinage Distribution S.A. Process for the continuous analysis of chloride ions present in the head-waters of a distillation column for hydrocarbons, and analysing apparatus for carrying out this process
US4942133A (en) * 1987-12-21 1990-07-17 Compagnie de Raffinage et de Distribution Procedure for the continuous analysis of the chloride ions present in the overhead waters of a hydrocarbon distillation column

Also Published As

Publication number Publication date
NL7513838A (en) 1976-05-31
LU71368A1 (en) 1976-09-06
DE2552654C3 (en) 1979-01-25
DE2552654B2 (en) 1978-05-24
DE2552654A1 (en) 1976-06-10
BE835940A (en) 1976-03-16
DK534175A (en) 1976-05-28
FR2292977B1 (en) 1978-09-22

Similar Documents

Publication Publication Date Title
US3491592A (en) Measurement of flow rate of aqueous streams
US2396934A (en) Detection of the chemical condition of materials
Martin et al. Membrane-dialzer injection loop for enhancing the selectivity of anion-responsive liquid-membrane electrodes in flow systems: Part 1. A sensing system for NOx and nitrite
JPS638423B2 (en)
SU654193A3 (en) Method of determining relative volume of particles in liquid and device for effecting same
Bower Determination of sodium in saline solutions with a glass electrode
FR2292977A1 (en) Continuous monitoring of the concentration of complex solutions - by using selective electrodes immersed in a constant volume cell
US3296098A (en) Method and apparatus for gas analysis
Lilley et al. The chronoamper ometric determination of dissolved oxygen using membrane electrodes
Evans et al. A polarographic method of measuring dissolved oxygen in saturated soil
GB1419214A (en) Electric surface area meter
GB1184572A (en) Improvements in Oxygen Detectors.
Strange Potentiometric recorder for hydrogen sulfide and hydrogen cyanide
GB1436287A (en) Ion monitoring method and apparatus
GB1363051A (en) Method and apparatus for measurement of minute quantities of oxygen
SU1497545A1 (en) Method of continuous analysis of multicomponent electrolyte system
Osato et al. Laboratory Method for Controlling Dissolved Oxygen Content in Corrosion Media at Extremely Low Levels
GB1156915A (en) Improvements in or relating to the Detection or Determination of Fluorine
Fricke et al. Effect of Various Gases on the pH of Water
GB1314917A (en) Method and apparatus for determining the oxygen demand of aqueous samples
JP2523608B2 (en) Phase difference detection method in AC applied polarization reaction
SU1046668A1 (en) Device for measuring volume part of gas mixture components
JPS56153248A (en) Gas measuring device
GB1309871A (en) Apparatus and method for monitoring of dissolved oxygen in a fluid
Beard Conductivity cell apparatus for continuous measurement of sulfur dioxide concentrations between 40 ppm and 1 per cent

Legal Events

Date Code Title Description
ST Notification of lapse