Entitic amount-of-substance (entitic am.s.)
Abbreviation |
Entitic am.s. | ||
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Definition in words |
Amount-of-substance of component B divided by the number of entities Alternative expression: Amount-of-sustance of component B per entity Note: Entity is a particle, molecule or a cell. |
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Definition by equation |
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Systematic terms
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Entitic amount-of-substance of component B per entity in a system | ||
Result type |
Rational scale |
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Numerical values from 0-∞ |
Unit |
amol, fmol, pmol, nmol etc. Note: The correct unit is e.g. “amol/1” but “1” is omitted. |
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Special rule(s) in the NPU syntax |
The entity is the system 1 in the NPU syntax. | ||
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. |
Laboratory field |
Examples |
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Clinical Chemistry |
Example 1 | |
Generic abbreviated |
NPU17007 Rtcs(B)—Haemoglobin(Fe); entitic am.s. = ? fmol | |
Full result | NPU17007 Reticulocytes(Blood)—Haemoglobin(Fe); entitic amount-of-substance = 2 fmol per Reticulocyte | |
Abbreviated result | NPU17007 Rtcs(B)—Haemoglobin(Fe); entitic am.s. = 2 fmol | |
Written expression | The entitic amount-of-substance of Haemoglobin(Fe) per Reticulocyte in Mr. Smith’s blood is [2.0] fmol. | |
Equation
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Notes
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“Fe” is the IUPAC symbol for iron atom. | |
Example 2 | ||
Generic abbreviated |
NPU02320 Ercs(B)—Haemoglobin(Fe); entitic am.s. = ? fmol | |
Full result | NPU02320 Erythrocytes(Blood)—Haemoglobin(Fe); entitic amount-of-substance = 1.8 fmol per Erythocyte | |
Abbreviated result | NPU02320 Ercs(B)—Haemoglobin(Fe); entitic am.s. = 1.8 fmol | |
Written expression | The entitic amount-of-substance of Haemoglobin(Fe) per Erythrocyte in Mr. Smith’s blood is [1.8] amol. | |
Equation | ||
Notes |
The popular name and abbreviation for this examination is “mean corpuscular hemoglobin” and “MCH” “Fe” is the IUPAC symbol for iron atom. |
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Thrombosis and Haemostasis
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Example 3
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Generic abbreviated |
NPU02384 Trcs(B)—Histidine-rich glycoprotein; entitic am.s. = ? amol | |
Full result | NPU02384 Thrombocytes(Blood)—Histidine-rich glycoprotein; entitic amount-of-substance = 20 attomol per Thrombocyte | |
Abbreviated result | NPU02384 Trcs(B)—Histidine-rich glycoprotein; entitic am.s. = 20 amol | |
Written expression | The entitic amount-of-substance of Histidine-rich glycoprotein per Thrombocyte in Mr. Smith’s blood is [20] amol. | |
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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Entitic amount-of-substance
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Reference |
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Date | Term | Note |
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1996-01-01 | Entitic amount-of-substance | Term established |
NPU term identifier |
QU50002 |