First Quantum Minerals Ltd. is a mining and metals company, which engages in the production of copper, gold, and acid and related activities including mineral exploration, development, and processing.
Contrary to common belief, glucose can be oxidized on gold in acid solutions, but only in the absence of strongly adsorbed anions such as chlorides, sulfates and phosphates.
Both the oxidation and reduction of aqueous SO2 occur on a polycrystalline gold in acid solutions between the onset of hydrogen and oxygen evolution.
A novel method is developed for selective electrochemical detection of guanine (GA) based on activity of gold mercaptopropionic acid self-assembled monolayers (Au-MPA SAMs) functionalized via covalent binding of 5-amino-1,10-phenanthroline-Fe(II) complex (5Aphen-Fe(II)).
It is demonstrated in the present work, for three different electrode systems (copper in base and platinum and gold in acid), that metal surfaces may be activated, i.e. the lattice energy in the outer layers of the metal may be reduced, by severe cathodic or thermal pretreatment.
using 0.5×TAE running buffer (20 mM Tris, 10 mM acetate, 0.5 mM Na2-EDTA, pH 8.2) at 60°C for 6 h at 200 V. Gels were stained for 30 min in SYBR Gold nucleic acid stain (1000× final concentration, Molecular Probes), destained for 10 min in 0.5×TAE, and photographed with UV transillumination.
RNA was visualized with SYBR® Gold nucleic acid stain.
Briefly, an aqueous solution of gold tetrachloroauric acid, with a weight content of 82.8 mg of gold, was heated until boiling point under vigorous stirring.
Then 34.6 × 10−3 M trisodium citrate (J. T. Baker) was quickly added to the boiling gold chloroauric acid solution under vigorous stirring.
The gels were stained with SYBR gold nucleic acid gel stain (Molecular Probes, Leiden, the Netherlands) for 20 min, and bands were visualized with a UV transilluminator.
Gels were stained with SYBR gold nucleic acid gel stain (Molecular Probes) in 1 × TBE buffer (pH 8.0), the bands being visualised by UV transillumination on a Gel Doc 2000 instrument (Bio-Rad, Hemel Hempstead, UK).
