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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2017/10/12 21:11:41」(JST)
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An osmometer is a device for measuring the osmotic strength of a solution, colloid, or compound.
There are several different techniques employed in osmometry:
- Vapor pressure depression osmometers determine the concentration of osmotically active particles that reduce the vapor pressure of a solution.
- Membrane osmometers measure the osmotic pressure of a solution separated from pure solvent by a semipermeable membrane.
- Freezing point depression osmometer may also be used to determine the osmotic strength of a solution, as osmotically active compounds depress the freezing point of a solution.
Osmometers are useful for determining the total concentration of dissolved salts and sugars in blood or urine samples. Osmometry is also useful in determining the molecular weight of unknown compounds and polymers.
Osmometry is the measurement of the osmotic strength of a substance.[1] This is often used by chemists for the determination of average molecular weight.
See also
- Clifton nanolitre osmometer, an example of a freezing point depression osmometer.
References
- ^ ISCID Encyclopedia of Science and Philosophy
UpToDate Contents
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English Journal
- Analytical validation and reference intervals for freezing point depression osmometer measurements of urine osmolality in dogs.
- Guerrero S1,2,3, Pastor J1,2,3, Tvarijonaviciute A1,2,3, Cerón JJ1,2,3, Balestra G1,2,3, Caldin M1,2,3.
- Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc.J Vet Diagn Invest.2017 Nov;29(6):791-796. doi: 10.1177/1040638717726114. Epub 2017 Aug 14.
- PMID 28803509
- Fluid accumulation after closure of atrial septal defects: the role of colloid osmotic pressure.
- Indrebø M1,2, Berg A3,4, Holmstrøm H1,2, Seem E5, Guthe HJ3, Wiig H6, Norgård G2.
- Interactive cardiovascular and thoracic surgery.Interact Cardiovasc Thorac Surg.2017 Oct 10. doi: 10.1093/icvts/ivx334. [Epub ahead of print]
- PMID 29049836
- Impact of Smoking on the Ocular Surface, Tear Function, and Tear Osmolarity.
- Aktaş S1, Tetikoğlu M1, Koçak A2, Kocacan M2, Aktaş H3, Sağdık HM1, Özcura F1.
- Current eye research.Curr Eye Res.2017 Sep 22:1-5. doi: 10.1080/02713683.2017.1362005. [Epub ahead of print]
- PMID 28937831
Japanese Journal
- GLASS MICROCAPILLARY OSMOMETER THAT CAN MEASURE REAL TIME CHANGES IN THE INTRACELLULAR OSMOLARITY : ITS DEVELOPMENT AND APPLICATION
- Proceedings of the Japan Society for Comparative Endocrinology (21), 4, 2006-11-03
- NAID 10018293690
- 1N1145 ガラス微小毛細管浸透圧計を用いたゾウリムシ細胞質と収縮胞液の浸透圧のリアルタイム計測(12.細胞生物学的課題,一般演題,日本生物物理学会第40回年会)
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