osmometer


Also found in: Dictionary, Encyclopedia, Wikipedia.

osmometer

 [oz-mom´ĕ-ter]
an instrument for measuring osmotic concentration or pressure.

os·mom·e·ter

(oz-mom'ĕ-tĕr),
1. An instrument for measuring osmolality by freezing point depression or vapor pressure elevation techniques.
2. An apparatus for measuring the acuteness of the sense of smell.

os·mom·e·ter

(oz-mom'ĕ-tĕr)
Instrument used to determine concentration of free particles in solution; usually by freezing point depression or vapor pressure.
See also: osmolality, freezing point depression

osmometer

an instrument used for the measurement of OSMOTIC PRESSURE of a solution.
References in periodicals archive ?
When water molecules enter the open osmometer, they do add volume to the solution, causing the solution level in the osmometer to rise (graphic).
A 10l.Lm sample of this fluid was analyzed with a vapor pressure osmometer (Wescor Inc., 5100C, Logan, UT) to estimate tissue osmolality.
We gladly junked unusable glassware, ancient paperwork--not patient records, but outdated procedure manuals and the like--and an antique osmometer that no longer worked.
Plasma and urine samples were analyzed for concentrations of sodium and potassium ions by flame photometer (Flame photometer 410C, Ciba Corning Inc., USA), chloride ion by Chloridometer (Chloride analyzer 925, Ciba Corning Inc., USA) and osmolality by osmometer (Osmometer 3D3, Advance Instrument Inc., USA).
Osmometer line includes Vapor Pressure Osmometer to determine average molecular weight of polymers and osmolality of aqueous solutions; Membrane Osmometer to measure average molecular weight Mn of polymers; and Cryoscopic Osmometer to determine molar masses in benzolic solutions.
The osmotic pressures of 10-[[micro]liter] samples were measured in a Wescor Model 5300 vapor pressure osmometer (Logan, Utah).
Osmolality of xylem sap samples and the nutrient solution was determined with a freezing point depression osmometer (Microosmette 5004, Precision Systems, Inc., Natick, MA).
Osmolarity was determined by using a freezing point osmometer (Cryoscopic osmometer, osmomat 030, Genotec).
Mesogleal fluid from both bell and tentacles was drawn into calibrated hemocrit tubes and osmotic pressure determined using a Wescor 5500 vapor pressure osmometer. Osmotic pressure was also measured in the corresponding samples of external media.
Cost of equipment for a tumor immunology lab Approximate Instrument cost Laminal flow hood $ 8,000 [CO.sub.2], water-jacketed incubator 5,000 Water baths, shakers, rockers 1,000 Inverted microscope 4,500 Cryostat, liquid nitrogen tank 12,000 Pipet guns 800 Micropipets, adjustable 500 Beta counter 17,000 Gamma counter 7,000 Cell harvester 5,000 Heater 500 pH meter 500 Osmometer 900 Total $ 62,700