Physics
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986gecoa..50..289t&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 50, Issue 2, pp.289-297
Physics
3
Scientific paper
Copper and lead ion-selective electrodes have been used to monitor titrations of Pb and Cu with fulvic acid extracted from the River Tamar, Southwest England. The titrations were carried out in 0.1 M NaClO 4 at 25°C at pH values in the range 6.0 to 6.5. The titration data were analysed using five different models; two assuming small values of discrete binding sites (multi-site and multidendate models), and three assuming continua of binding sites (electrostatic, normal distribution and affinity spectrum models). On both statistical and practical grounds the multi-site model was identified as the most effective in modelling the data. A synthetic data set proposed by and (1984) was used to examine the effect of random errors on the various data analysis procedures.
Mantoura F. C. R.
Riley P. J.
Turner David R.
Varney M. S.
Whitfield Michael
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