in analytical chemistry
Also contains definition of: heterogeneity in analytical chemistry
The degree to which a property or a @C01281@ is uniformly distributed throughout a quantity of material. A material may be homogeneous with respect to one analyte or property but heterogeneous with respect to another. The degree of heterogeneity (the opposite of homogeneity) is the determining factor of @S05463@.
PAC, 1990, 62, 1193. (Nomenclature for sampling in analytical chemistry (Recommendations 1990)) on page 1201 [Terms] [Paper]