obsolete_molecular concentration A concentration is a relational quality that inheres in a material entity towards molecular scattered aggregate that is part of it by virtue of some ratio of masses of the two or the counts of the grains of the two or volume occupied by the larger material entity. Discussion in Karslruhe, Oct 2008, with, among others, Alan Rector, Stefan Schulz, Marijke Keet, Melanie Courtot, and Alan Ruttenberg. PERSON: Alan Ruttenberg the phosphate concentration should be 0.1M true obsolete_molecular concentration Obsolete Class metadata incomplete term imported