Header menu link for other important links
X
Diatom: A potential bio-accumulator of gold
N CHAKRABORTY, , A RAMASWAMI, D NAYAK, S LAHIRI
Published in SPRINGER
2006
Volume: 270
   
Issue: 3
Pages: 645 - 649
Abstract
The bioaccumulation of gold in trace concentration by Nitzschia obtusa and Navicula minima, two members of bacillariophyceae, has been studied. It has been observed that Nitzschia obtusa showed better accumulation of gold in acidic pH in comparison to neutral and basic pH. Maximum accumulation was observed with 1 mg·kg-1 or less gold concentration. However, the accumulation by the living cells was reduced when the matrix concentration was higher. Navicula minima, on the other hand, found to be a better accumulator of gold in wide ranges of pH and substrate concentration of the media. It was also inferred that the gold accumulation by diatom was mainly due to adsorption by biosilica (siliceous frustules of dead diatom cells). Accumulated gold was recovered with cone. HNO3. © 2006 Akadémiai Kiadó.
About the journal
JournalData powered by TypesetJournal of Radioanalytical and Nuclear Chemistry
PublisherData powered by TypesetSPRINGER
ISSN0236-5731
Open AccessNo