FR2197465A5 - Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice - Google Patents

Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice

Info

Publication number
FR2197465A5
FR2197465A5 FR7230347A FR7230347A FR2197465A5 FR 2197465 A5 FR2197465 A5 FR 2197465A5 FR 7230347 A FR7230347 A FR 7230347A FR 7230347 A FR7230347 A FR 7230347A FR 2197465 A5 FR2197465 A5 FR 2197465A5
Authority
FR
France
Prior art keywords
detector
column
sited
pref
capillary orifice
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
FR7230347A
Other languages
French (fr)
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.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine SA
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 Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
Priority to FR7230347A priority Critical patent/FR2197465A5/en
Application granted granted Critical
Publication of FR2197465A5 publication Critical patent/FR2197465A5/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
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G01N11/02—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material
    • G01N11/04—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
    • G01N11/08—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/62—Detectors specially adapted therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

Element peaks in a chromatographic column are detected by an e.g. piezoelectric pressure detector (with minimal dead space), pref. sited between the column outlet and a capillary orifice, or alternatively at the column inlet, or at a point in the column. The detector may be absolute; or may be a differential detector, e.g. between two parallel columns, one of which is fed with solvent only. The column is fed at pressure controlled e.g. to plus-or-minus .1% or at controlled flow; and the measured pressure fluctuations are due to enhancement of carrier viscosity; the area of the peaks being proportional to log. relative viscosity so that mol. wt. or intrinsic viscosity of solute. may be measured. The detector is non-specific but sensitive, and is simple to construct and use.
FR7230347A 1972-08-25 1972-08-25 Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice Expired FR2197465A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7230347A FR2197465A5 (en) 1972-08-25 1972-08-25 Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7230347A FR2197465A5 (en) 1972-08-25 1972-08-25 Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice

Publications (1)

Publication Number Publication Date
FR2197465A5 true FR2197465A5 (en) 1974-03-22

Family

ID=9103561

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7230347A Expired FR2197465A5 (en) 1972-08-25 1972-08-25 Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice

Country Status (1)

Country Link
FR (1) FR2197465A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519143A1 (en) * 1981-12-29 1983-07-01 Elf Aquitaine VISCOSIMETER OPERATING IN CONTINUOUS PARTICULARLY AT HIGH TEMPERATURE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519143A1 (en) * 1981-12-29 1983-07-01 Elf Aquitaine VISCOSIMETER OPERATING IN CONTINUOUS PARTICULARLY AT HIGH TEMPERATURE
EP0083524A1 (en) * 1981-12-29 1983-07-13 Societe Nationale Elf Aquitaine (Production) Installation for controlling the continuous functioning of a chromatographic system

Similar Documents

Publication Publication Date Title
IT1044570B (en) DETECTOR SYSTEM FOR COMATOGRAPHY
US4043906A (en) Method and apparatus for reducing the transient effects of liquid compressibility in a liquid chromatography system
CA927626A (en) Pressure sensor for determining fluid velocities
IE41318B1 (en) Arrangement for the control of the viscosity of a fluid
GB1254684A (en) Chromatographic peak selector
GB1395660A (en) Gas analyser
FR2197465A5 (en) Viscosimetric detector for chromatographic eluent - comprising pressure detector pref. sited between column outlet and capillary orifice
ES450978A1 (en) Control system for an absorption column
CH492958A (en) Device for measuring the flow rate of liquids under pressure
ES418740A1 (en) Device for applying a predetermined force to an elongate member connected to an installation subjected to alternating movements
GB1249419A (en) Differential pressure measuring apparatus comprising a differential manometer
GB1151080A (en) Method and Apparatus for Analysing a Flow of Liquid Passing Through a Narrow Pipe.
GB1402279A (en) Fluid signal limiting device
SU494681A1 (en) Apparatus for controlling gas flow in a gas chromatograph
GB1291724A (en) Improvements in or relating to apparatus for determining the presence of substances carried by a stream of carrier fluid
Lev et al. ANALYSIS OF THE LEASE-OR-BUY DECISION: COMMENT.
SU446705A1 (en) Safety device
GB1298999A (en) Improvements in or relating to apparatus for detecting the passage of movable small bodies
SU121276A1 (en) Device for measuring absolute pressure
GB1345101A (en) Instrument for measurement of dewpoints or partial water vapour pressures
CH585312A5 (en) Control of pulp feed rate to paper making machine - for a given pulp feed channel outlet slit height (OE150276)
ES420381A1 (en) Pedal to detect the passing of mobile elements on a lane, in particular railway pedal. (Machine-translation by Google Translate, not legally binding)
SU363033A1 (en) CHROMATOGRAPH WITH PROGRAMMING OF GAS-MEDIUM FLOW
SU700821A1 (en) Method of determining the quantity of impurity in gas mixture
Fendrikov et al. Study of variation in the characteristics of a conical diffuser as a function of inlet conditions(Highly uniform inlet velocity profile influence on conical diffuser characteristics)

Legal Events

Date Code Title Description
ST Notification of lapse