characteristic mass for integrated absorbance, m 0 in electrothermal atomization, in thin films, in electrothermal atomization

https://dx.doi.org/10.1351/goldbook.C00978
That mass of analyte which produces an integrated absorbance signal whose net area is equal to 0.0044 s.
Source:
PAC, 1992, 64, 253 (Nomenclature, symbols, units and their usage in spectrochemical analysis - XII. Terms related to electrothermal atomization (IUPAC Recommendations 1992)) on page 258