In the two decades since its inception by T.A. Hall, the continuum theory of quantification has become the general method for quantitative analysis of biological specimens. Although the method was originally developed for thin specimens, its use has been extended to thicker specimens, and it has also been used in quantitative determinations of local water content. The single most important difficulty in the application of the "Hall method" is the accurate calculation of the extraneous continuum, i.e., the continuum due to non-specimen sources. The different variations in methods for quantitative analysis of local water content are critically compared and a generally applicable method is proposed.
Roomans, Godfried M.
"The Hall Method in the Quantitative X-Ray Microanalysis of Biological Specimens: A Review,"
Scanning Microscopy: Vol. 4
, Article 17.
Available at: https://digitalcommons.usu.edu/microscopy/vol4/iss4/17