- high-resolution terminology - matching measurements at high-resolution
Density
Description
Density is frequently a quantity divided by volume: mass density or mass concentration is mass per volume, MยทV-1 [kgยทm-3]; radiant energy density is radiant energy per volume, QยทV-1 [Jยทm-3]; charge density is charge per volume, QยทV-1 [Cยทm-3]. However, electric current density is current divided by area, j=IยทA-1 [Cยทm-2]. Number density of entities or number concentration is numbers per volume, CB = NBยทV-1 [xยทm-3]. In contrast, the amount-of-substance concentration, cB = nBยทV-1 [molยทm-3] is not called a substance density (IUPAC). Thus the sample mass concentration is CmX = mXยทV-1 [kgยทm-3], the mitochondrial concentration is CmtE = mtEยทV-1 [mtEUยทm-3], whereas the specific mitochondrial density is DmtE = mtEยทmX-1 [mtEUยทkg-1], and the mitochondrial content per object X is mtENX = mtEยทNX-1 [mtEUยทx-1] (BEC 2020.1).
Abbreviation: ฯ, C, D
Reference: BEC 2020.1, Cohen 2008 IUPAC Green Book
References
| Bioblast link | Reference | Year |
|---|---|---|
| Bureau International des Poids et Mesures 2019 The International System of Units (SI) | Bureau International des Poids et Mesures (2019) The International System of Units (SI). 9th edition:117-216. ISBN 978-92-822-2272-0 | 2019 |
| Cohen 2008 IUPAC Green Book | Cohen ER, Cvitas T, Frey JG, Holmstrรถm B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor HL (2008) Quantities, Units and Symbols in Physical Chemistry. IUPAC Green Book 3rd Edition, 2nd Printing, IUPAC & RSC Publishing, Cambridge. | 2008 |
| Gnaiger 2020 BEC MitoPathways | Gnaiger E (2020) Mitochondrial pathways and respiratory control. An introduction to OXPHOS analysis. 5th ed. Bioenerg Commun 2020.2. https://doi.org/10.26124/bec:2020-0002 | 2020 |
| Gnaiger 2020 MitoFit x | Gnaiger E (2021) The elementary unit โ canonical reviewer's comments on: Bureau International des Poids et Mesures (2019) The International System of Units (SI) 9th ed. MitoFit Preprints 2020.04.v2. https://doi.org/10.26124/mitofit:200004.v2 | 2021 |
| BEC 2020.1 doi10.26124bec2020-0001.v1 | Gnaiger E et al โ MitoEAGLE Task Group (2020) Mitochondrial physiology. Bioenerg Commun 2020.1. https://doi.org/10.26124/bec:2020-0001.v1 | 2020 |
MitoPedia concepts: Ergodynamics
