mass concentration


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Related to mass concentration: molar concentration, molarity, Mass fraction

concentration

 [kon″sen-tra´shun]
1. increase in strength by evaporation.
2. the ratio of the mass or volume of a solute to the mass or volume of the solution or solvent.
3. intense mental focus.
hydrogen ion concentration see hydrogen ion concentration.
mass concentration the mass of a constituent substance divided by the volume of the mixture, as milligrams per liter (mg/l).
mean corpuscular hemoglobin concentration (MCHC) the average hemoglobin concentration in erythrocytes, conventionally expressed in “per cent,” meaning grams per deciliter of red blood cells, obtained by dividing the blood hemoglobin concentration (in g/dl) by the hematocrit (in l/l): MCHC = Hb/Hct.
minimal alveolar concentration (MAC) the concentration of anesthetic that at a pressure of 1 atmosphere produces immobility in 50 per cent of subjects exposed to a noxious stimulus.
minimal bactericidal concentration (MBC) the lowest concentration of a given antibiotic required to kill a specific organism.
minimal inhibitory concentration (MIC) the lowest concentration of a given antibiotic that inhibits the growth of a specific organism.
molar concentration the concentration of a substance expressed in terms of molarity.
concentration test a test of renal function based on the patient's ability to concentrate urine; see also fishberg concentration test.

mass concentration

The mass of a constituent in a solution divided by the volume of the mixture.

mass concentration

?
The amount of matter of any material divided by its volume. In the metric system, ? is defined in kilograms per liter (kg/L). See: substance concentration; molar concentration
See also: concentration
References in periodicals archive ?
[PM.sub.2.5] oxidative burden metrics were generated for GSH ([PM.sub.2.5] x [OP.sup.GSH]) and AA ([PM.sub.2.5] x [OP.sup.AA]) by multiplying period-specific ambient [PM.sub.2.5] mass concentrations ([micro]g/[m.sup.3]) by city-level estimates of oxidative potential.
(1) The higher the mass concentration of the filling slurry, the smaller the pore size of the filling slurry and the smaller the change in the [T.sub.2] spectrum area, which indicates that the hydration reaction rate is slower.
The mass concentrations of [PM.sub.10] ([d.sub.a] below 10 [micro]m) and [PM.sub.2.5] ([d.sub.a] below 2.5 [micro]m) are broadly used for air quality standard establishment and for assessing the air pollution levels.
In this experiment, we first give an ideal initial distribution of [PM.sub.2.5] aerosol mass concentration and solve aerosol transport model (1).
The initial mass concentration everywhere in the domain is zero except in the vicinity of the inlet where the concentration is equal to the inlet concentration.
The comparison will include soot mass concentration, solid particle number concentration as well as size distribution.
The mass concentration of the crude extract of the semifinished product was recorded after the first and second drain, and the mass concentration of a finished tincture was recorded after blending.
The mass concentration of the particles released with exhaust fumes of running bus engines was determined for respective measurement fractions: [PM.sub.1], [PM.sub.25], respirable fraction, [PM.sub.10] and the fraction of all particles in a measurable range of the apparatus, i.e., 100-15 000 nm (total fraction of particles).
During the tests the residual mass concentration of surfactants is measured and the chemical consumption of oxygen ([S.sub.PAVvyh] and HP[K.sub.vyh]) in purified water from the experienced aeration tank and also HP[K.sub.vyh] (cont) of a treated wastewater from control aeration tank.
By following Einstein's theory of Gravitation, it's well known that a mass concentration would deform locally the Space-Time and the observed shapes of distant galaxies seen through the concentration would be deflected and distorted.
There was an 80% increase in the mass concentration of iodine in bread with the introduction of the fortifying supplement.