广义的浓度是溶质的量与溶液的体(容)积之比,也即单位体积溶液中所含溶质的量。按照S(I国际单位制)及我国法定计量单位的有关规定,在医药学领域溶液的体积一律以“升”(L)为基准;溶质的量则可用“物质的量”以mol、mmol、μmol等法定计量单位表示,也可用“质量”以g、mg、μg、ng等法定计量单位表示。因此在实际应用中就可有多种多样的浓度表 The generalized concentration is the ratio of the amount of solute to the volume of solution, that is, the amount of solute contained in the solution per unit volume. According to S (I) and the legal unit of measurement of the relevant provisions of our country, the volume of the solution in the field of medicine are all “liters ” (L) as the base; the amount of solute can be used “amount of material ” to mol, mmol, μmol and other legal units of measurement can also be used “quality ” in g, mg, gg, ng and other statutory units of measurement. So in practice there are a variety of concentration tables