Arsenic (As) contamination in groundwater has received significant attention recently.
Natural and anthropogenic sources contribute to the worldwide occurrence of As …

Humic substances are complicated, naturally occurring organic compounds of high
molecular weight. Owing to the presence of functional groups containing oxygen, and to a …

Mercury is a global contaminant of concern due to its transformation by microorganisms to
form methylmercury, a toxic species that accumulates in biological tissues. The effect of …

This paper presents a new conceptual approach to interpreting titration curves of metal
complexation by physically and chemically heterogeneous natural complexants such as …

The stability of copper complexes with thiol substances in estuarine waters was determined
for the first time using a new procedure based on cathodic stripping voltammetry (CSV). The …

Here it is demonstrated that both Porphyra spp. and Enteromorpha spp. of macro-algae
display similar and very marked seasonal variations in their concentration factor (CF) of Cu …

Humic substances are soil and fresh-water components that play an important role in the
binding and transport of both organic and inorganic contaminants. Transport of the …

A set of experiments on the complexation of cadmium and lead with humic acids were
performed at pH 5.0 using normal-and reverse-pulse polarography and dc and differential …

This study investigates the relationships among Ni, Cd and Pb's different chemical forms
determined by different methodologies in coastal and transitional waters across a broad …

Microcystins are a family of potently hepatotoxic heptapeptides which have been detected in
a wide range of cyanobacteria. The novel application of polarography in the analysis of …