There was no interaction between treatments applied
(different combinations of STPP and NaCl) and sampling
positions on the slice (Fig. 1). However, significant differences
(p < 0.05) in STPP and NaCl concentrations were
found at different positions of the slice (data non-shown).
Disregarding of the salts concentration used, values of
the centre (C) were always higher than those of the peripheral
positions (1, 2, 3).