Relative mass concentration (rel.mass c.)
Abbreviation |
Rel.mass c. | ||
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Definition in words |
Mass concentration of component B in system 1 divided by mass concentration of component B in system 2 Note: System 1 is not related to system 2 |
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Definition by equation
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Systematic terms
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Relative mass concentration of component B in system 1 | ||
Result type |
Rational scale |
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Numerical values from 0-∞ |
Unit |
10-6, 10-3, 1 (one), 103, 106, etc. The unit “1” (one) is ommited in the NPU syntax. |
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Reference |
Ferard G, Dybkaer R, Fuentes-Arderiu X. Compendium of Terminology and Nomenclature of Properties in Clinical Laboratory Sciences : Recommendations 2016. 1 ed: Royal Society of Chemistry; 2016. 182 p. Doi:10.1039/9781782622451. |
Laboratory field |
Examples |
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Clinical Chemistry |
Example 1
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Generic abbreviated form | NPU19659 Csf—Albumin; rel.mass c.(Csf/P) = ? × 10-3 | |
Full form with a result | NPU19659 Cerebrospinal fluid—Albumin; relative mass concentration(Cerebrospinal fluid/Plasma) = 5.7 × 10-3 | |
Abbreviated form with a result | NPU19659 Csf—Albumin; rel.mass c.(Csf/P) = 5.7 × 10-3 | |
Written expression | The relative mass concentration of albumin in Mr. Smith’s Cerebrospinal fluid is [5.7] × 10-3. The calculation is performed by dividing mass concentration of albumin in Mr. Smith’s cerebrospinal fluid with mass concentration of albumin in Mr. Smith’s plasma. | |
Equation | ||
Example 2 | ||
Generic abbreviated form | NPU29225 Csf—Prostaglandin-D-synthase; rel.mass c.(Csf/P) = ? | |
Full form with a result | NPU29225 Cerebrospinal fluid—Prostaglandin-D-synthase; relative mass concentration(Cerebrospinal fluid/Plasma) = 0.24 x one | |
Abbreviated form with a result | NPU29225 Csf—Prostaglandin-D-synthase; rel.mass c.(Csf/P) = 0.24 | |
Written expression | The relative mass concentration of Prostaglandin-D-synthase in Mr. Smith’s Cerebrospinal fluid is [0.24]. The calculation is performed by dividing mass concentration of Prostaglandin-D-synthase in Mr. Smith’s cerebrospinal fluid with mass concentration of Prostaglandin-D-synthase in Mr. Smith’s plasma. | |
Equation | ||
Reference |
NPU database, https://www.ifcc.org/ifcc-scientific-division/sd-committees/c-npu/npusearch/ and http://www.labterm.dk/default.aspx |
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Kind-of-property
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Nominal kind-of-property
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Kind-of-quantity
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Unitary kind-of-quantity
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Rational unitary kind-of-quantity
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Relative mass concentration
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Reference |
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Date | Term | Note |
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1996-01-01 | Relative mass concentration | Term established |
NPU term identifier |
QU50024 |