WO2008010164A3 - Device for osmotic pressure measurement and measurement method using it - Google Patents

Device for osmotic pressure measurement and measurement method using it Download PDF

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Publication number
WO2008010164A3
WO2008010164A3 PCT/IB2007/052789 IB2007052789W WO2008010164A3 WO 2008010164 A3 WO2008010164 A3 WO 2008010164A3 IB 2007052789 W IB2007052789 W IB 2007052789W WO 2008010164 A3 WO2008010164 A3 WO 2008010164A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
chamber
osmotic pressure
measurement
solution
Prior art date
Application number
PCT/IB2007/052789
Other languages
French (fr)
Other versions
WO2008010164A2 (en
Inventor
Alessandro Grattoni
Giancarlo Canavese
Original Assignee
Torino Politecnico
Alessandro Grattoni
Giancarlo Canavese
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 Torino Politecnico, Alessandro Grattoni, Giancarlo Canavese filed Critical Torino Politecnico
Publication of WO2008010164A2 publication Critical patent/WO2008010164A2/en
Publication of WO2008010164A3 publication Critical patent/WO2008010164A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
    • G01N13/04—Investigating osmotic effects

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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The osmotic pressure measurement device comprises a hollow shell in which a chamber (10) is machined, which contains a solution which osmotic pressure has to be measured. The device also houses a solvent chamber (12). A semipermeable membrane (20) separates the chambers (10, 12). The device presents elements useful to increase the pressure in the solution chamber (10) and devices useful to measure the pressure in the solution chamber (10). The measurement process is divided in two parts: a) set the solution chamber (10) pressure at a specific value; b) let the pressure value in the chamber (10) to evolve naturally toward the actual osmotic pressure equilibrium value, nullifying at the same time the solvent flow between the chambers (10, 12).
PCT/IB2007/052789 2006-07-13 2007-07-12 Device for osmotic pressure measurement and measurement method using it WO2008010164A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2006A000508 2006-07-13
ITTO20060508 ITTO20060508A1 (en) 2006-07-13 2006-07-13 OSMOTIC PRESSURE MEASURING DEVICE AND ITS MEASUREMENT PROCEDURE

Publications (2)

Publication Number Publication Date
WO2008010164A2 WO2008010164A2 (en) 2008-01-24
WO2008010164A3 true WO2008010164A3 (en) 2008-06-19

Family

ID=38957168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/052789 WO2008010164A2 (en) 2006-07-13 2007-07-12 Device for osmotic pressure measurement and measurement method using it

Country Status (2)

Country Link
IT (1) ITTO20060508A1 (en)
WO (1) WO2008010164A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101858845B (en) * 2010-06-04 2013-04-10 徐州工程学院 Direct-reading osmotic pressure tester and osmotic pressure testing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195346A (en) * 1963-01-14 1965-07-20 Mechrolab Inc Automatic osmometer
US3248932A (en) * 1963-05-15 1966-05-03 Sun Oil Co Osmometer
FR1526879A (en) * 1966-09-06 1968-05-31 Improvements to constant volume osmometers and pressure sensors
US3518875A (en) * 1968-02-26 1970-07-07 Rene Casimir Auguste Charmasso Osmometer
US4706495A (en) * 1984-10-31 1987-11-17 Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung Method and apparatus for the determination of substances dissolved in a solvent
US5005403A (en) * 1988-07-25 1991-04-09 Ernst Steudle Process and apparatus for the determination of the concentration of a substance dissolved in a solvent by means of an osmometer
DE10215621A1 (en) * 2002-04-09 2003-10-30 Rudolf Ehwald Assembly to measure pressure changes, comprises a measurement cell filled with a sensitive fluid, separated from a compensation cell by a pressure sensing membrane

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195346A (en) * 1963-01-14 1965-07-20 Mechrolab Inc Automatic osmometer
US3248932A (en) * 1963-05-15 1966-05-03 Sun Oil Co Osmometer
FR1526879A (en) * 1966-09-06 1968-05-31 Improvements to constant volume osmometers and pressure sensors
US3518875A (en) * 1968-02-26 1970-07-07 Rene Casimir Auguste Charmasso Osmometer
US4706495A (en) * 1984-10-31 1987-11-17 Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung Method and apparatus for the determination of substances dissolved in a solvent
US5005403A (en) * 1988-07-25 1991-04-09 Ernst Steudle Process and apparatus for the determination of the concentration of a substance dissolved in a solvent by means of an osmometer
DE10215621A1 (en) * 2002-04-09 2003-10-30 Rudolf Ehwald Assembly to measure pressure changes, comprises a measurement cell filled with a sensitive fluid, separated from a compensation cell by a pressure sensing membrane

Also Published As

Publication number Publication date
WO2008010164A2 (en) 2008-01-24
ITTO20060508A1 (en) 2008-01-14

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