Removal of, metal values from industrial wastes through bioleaching offers a non-polluting and economic solution to environmental problems. In the present work, the fungal strain Aspergillus niger, isolated from soil near ...

A method is described for the atomic absorption spectrometric determination of gold in geological samples, involving a modified digestion procedure with sequential use of HBr-Br2 and aqua regia [HCl-HNO3 (3 + 1)]. The ...