| 释义 |
osmolar, a.|ɒzˈməʊlə(r)|
[Blend of osmotic a. and molar a.3]
Of the concentration of a solution: expressed as an osmolarity.
1942J. L. Gamble Chem. Anat., Physiol. & Path. Extracellular Fluid (ed. 4) Notes to chart 17-B, Multiplying osmolar concentration by cubic centimeters of urine produces a measurement of total solutes as milliosmoles. 1944Proc. Amer. Philos. Soc. LXXXVIII. 152/1 If we divide degrees of freezing point depression by 1·86 we obtain osmolar concentration. Multiplying osmolar concentration by cubic centimeters of urine, defines the total output of solutes as milliosmoles. 1963Jrnl. Amer. Med. Assoc. 31 Aug. 700/2 The serum osmolar concentration of 25 normal subjects..was 285 {pm} 4·4..milliosmoles (mOsm) per kilogram of water. 1971[see osmolal a.].
Hence osmoˈlarity, the number of osmotically effective dissolved particles per unit quantity of a solution, esp. when expressed as (milli)osmols per litre of solution. Cf. osmolality.
1953Lancet 12 Sept. 540/2 An assumed plasma osmolarity of 310 milliosmols per litre. 1962J. H. Kinoshita et al. in A. Pirie Lens Metabolism Rel. Cataract 406 The final glucose concentration..was 5 µmoles/ml. The total osmolarity was calculated as 307 µosmoles/ml. 1965New Scientist 24 June 868/1 The most important functions of the kidney are to keep constant the volume, osmolarity and composition of the fluid which surrounds the cells of the body. 1973Jrnl. Biol. Chem. CCXLVIII. 4172/1 Solutions of low osmolarity. |