transport interference

in flame spectroscopy
https://doi.org/10.1351/goldbook.T06488
Transport interferences affect the amount of desolvated sample passing through the horizontal flame cross-section per unit time at the observation height. They include factors affecting the rate of liquid consumption, Fl, the efficiency of nebulization, ɛn, and the fraction desolvated β s. They may be classified as non-specific (and physical).
Source:
Orange Book, 2nd ed., p. 170 (https://media.iupac.org/publications/analytical_compendium/)