Mercury amalgamation is used indiscriminately in the recovery of gold by small-scale native gem winners in Ghana. Mercury is released into the environment in the form of wastewater, tailing and vapor from the roasting of amalgam to separate gold. The study looked at the levels of total mercury concentration in surface soil and cassava crop from farms located within the vicinities of Bogoso and ...

N-Acetylcysteine (H2NAC) is a potent antioxidant, a precursor for cysteine and glutathione, and a potential antidote against certain metal ions such as cadmium and mercury. Little is known about the structural aspects of complexes formed between Hg(II) and N-acetylcysteine, despite many biological tests on its ability to bind to organic and inorganic mercury, and a few reports on formation cons...

Chemical and morphological heterogeneities of carbon sorbents play important roles in gas-phase adsorption. However, the specific chemical complexes and topological structures of carbon that favor or impede elemental mercury uptake are not well understood and are the subject of this study. Temperature programmed desorption (TPD) with a model carbonaceous material (highly oriented pyrolytic grap...

The luminescence of mercury clusters in the gas phase has been studied extensively in the past [ 11. Mercury vapor shows many emission bands including the ultraviolet (A,,=335 nm) and green (1,,,=485 nm) luminescence which originate from excited dimers Hg2 and trimers Hg,, respectively. In contrast to the gas phase very little is known about the emission of mercury clusters in the condensed pha...

I. Broughton, P.M.G., A rapid ultraviolet spectrophometric method for detection, estimation and identification of barbiturates in biological material. Biochein. J. 63, 207 (1956). 2. Stevenson, W. G., Spectrophotometric determination of blood barbiturate. Anal. Chm. 33, 1374 (1961). 3. Bjorling, C. 0., Berggren, A., and Willman-Johnson, B., I)etermination of barbituric acid derivatives as mercu...

Formation of T-Hg(2+)-T complexes changes the configuration of a single-stranded DNA, leading to enhanced fluorescence of an anchored cyanine-based probe that displays restricted intramolecular rotation (RIR)-induced emission. This label-free system can be used as a sensor for mercury ions with a detection limit of 4 nM.