Measuredmättade

Measuredmättade is a term used in some discussions of saturation phenomena in materials science and chemistry. It is a neologism formed from the English word measured and the Swedish word mättad meaning saturated. The concept denotes a normalized, dimensionless quantity that indicates how close a system is to its saturation state based on experimental data.

Definition and calculation: In adsorption or sorption studies, measuredmättade is commonly defined as the ratio between the amount adsorbed at a given condition, q, and the maximum adsorption capacity, q_s, of the material under those conditions. Thus measuredmättade = q / q_s. In other contexts, such as solution chemistry, it can be defined similarly relative to a solubility limit or saturation concentration. The value ranges from 0 (no uptake) to 1 (fully saturated), with intermediate values representing partial saturation.

Applications and methods: The term is used primarily in niche or interdisciplinary literature dealing with porous materials, polymers, or environmental sorption processes. It relies on experimental measurements such as gravimetric or volumetric uptake, calorimetric data, or spectroscopic quantification to determine q and q_s, with q_s typically inferred from extrapolated isotherms or known material capacities.

Limitations: Because measuredmättade is not a standard term, its definition can vary between studies, potentially hindering cross-study comparisons. Many researchers prefer explicit statements of uptake relative to q_s or use other metrics like fractional uptake.

See also: saturation, adsorption isotherm, Langmuir model, sorption capacity.