Studies by chimiometric methods of the interaction between Pb(II) and humic acids

S ORSETTI; E M ANDRADE; F. V. MOLINA

Santa Cruz, Tenerife, Islas Canarias

Congreso; 15th IHSS MEETING "Humic Substances and the Maintenance of Ecosystem Services"; 2010

International Humic Substances Society

<!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:ES; mso-fareast-language:ES;} @page Section1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> The aim of this work is to study EEMs of humic acids (HA) at several Pb(II) concentrations, analyzing them with PARAFAC as a whole to estimate the number of individual components of the sample (fluorophores), their emission and excitation fluorescence spectra, as well as the relative concentration of those in each sample. The effect of pH value and ionic strength is also analyzed.