Ability of Cyanobacteria and Arthrobacter Species to Remove Gold Ions   from Solution
  The biosorption of Au(III) - Spirulina platensis and Au(III) - Arthrobacter species (Arthrobacter globiformis and Arthrobacter oxidas) were studied at simultaneous application of dialysis and atomic absorption analysis. Also biosorption of Au(III) - Spirulina platensis at various pH were discussed. Biosorption constants for Au-cyanobacteris Spirulina platensis at different pH, and for Arthrobacter oxidas and Arthrobacter globiformis at pH=7.1 are :   1. K=3.91 x 10-4 (Au- Arthrobacter oxidas 61B, pH=7.1)   2. K=14.17 x 10-4 . (Au- Arthrobacter globiformis 151B, pH=7.1).   3. K=2.07x10-4 (Au- Spirulina platensis, pH=7.1)   4. K= 4.87x10-4 (Au- Spirulina platensis, pH=6.2)   5. K=8.7x10-4 (Au- Spirulina platensis, pH=8.4) 
E.Gelagutashvili, E.Ginturi, A.Rcheulichvili, K.Tsakadze,   N.Bagdavadze, N.Kuchava, M.Djandjalia
physics.bio-ph