Studies about the adsorption on lichen Evernia prunastri by enthalpimetric measurements.
Lichens are bioaccumulators of divalent metal ions and the interaction between the lichens and five heavy metals was studied. In order to have a better understanding of the metal-uptake process by the lichens, data from atomic absorption spectroscopy were used to calculate the apparent coordination constants of the lichen-metal ion interactions by means of the Langmuir elaboration and microcalorimetric measurements to obtain enthalpimetric information. The results showed a correlation between the Langmuir constants and enthalpimetric measurements.
Antonelli
M L
ML
Department of Chemistry, University ;La Sapienza', P. le Aldo Moro, 5-00185 Rome, Italy.
Ercole
P
P
Campanella
L
L