Biochemia Medica, Vol. 23 No. 2, 2013.
Uvodnik
https://doi.org/10.11613/BM.2013.017
Concentration and content
Xavier Fuentes-Arderiu
; Clinical Laboratory Sciences Consulting, Barcelona, Catalonia, Spain
Sažetak
One of the more frequent activities in health sciences is the measurement of biological quantities. Frequently, when reading biomedical books and journals some confusion on the metrological mea-ning of biological quantities related to the concepts ‘concentration’ and ‘content’ may be observed. Classically, a concentration is an amount of any type per volume of liquid or gas system, whereas content is an amount of any type per mass of liquid or gas or solid system. However the concepts ‘concentration’ and ‘content’ alone are still ambiguous because, depending on the type of amount of the component (analyte) per volume or mass of a system, there are different types of concentrations and contents. This article attempts to give a clarification of these concepts, mainly based on internati-onal recommendations about nomenclature and terminology of metrology, chemistry and clinical laboratory sciences.
Ključne riječi
concentration; content; quantity; metrology; terminology
Hrčak ID:
103789
URI
Datum izdavanja:
15.6.2013.
Posjeta: 1.843 *