Document Detail


Solid phase extraction of chromium(VI) from aqueous solutions by adsorption of its diphenylcarbazide complex on an Amberlite XAD-4 resin column.
MedLine Citation:
PMID:  17600617     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A method has been developed for the solid phase extraction of chromium(VI) based on the adsorption of its diphenylcarbazide complex on an Amberlite XAD-4 resin column. The influence of acidity, stability of the column, sample volume, flow rate and interfering ions were studied in detail. The adsorbed complex could be eluted using acetone-sulfuric acid mixture and the concentration of chromium was determined using visible spectrophotometry. A detection limit of 6 microg L(-1) could be achieved. A preconcentration factor of 27 could be obtained for 400 mL sample volume. The validity of the method was checked in spiked water samples and electroplating wastewater.
Authors:
N Rajesh; Rohit Kumar Jalan; Pinky Hotwany
Related Documents :
14640447 - Hexavalent chromium recovery by liquid-liquid extraction with tributylphosphate from ac...
12611657 - Development and application of a robust speciation method for determination of six arse...
17761387 - Characterization of arsenic (v) and arsenic (iii) in water samples using ammonium molyb...
19054667 - Argentinean native wood species: physical and mechanical characterization of some proso...
17213947 - Dielectrophoretic separation of bacillus subtilis spores from environmental diesel part...
7404127 - In vitro neutralizing capacity of commercially available antacid mixtures, and their ro...
Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2007-05-16
Journal Detail:
Title:  Journal of hazardous materials     Volume:  150     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2008 Feb 
Date Detail:
Created Date:  2008-01-21     Completed Date:  2008-05-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  723-7     Citation Subset:  IM    
Affiliation:
Chemistry Group, Birla Institute of Technology and Science, Pilani, Rajasthan 333031, India. rajesh@bits-pilani.ac.in
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adsorption
Chromium / chemistry*
Diphenylcarbazide / chemistry*
Electroplating
Industrial Waste
Polystyrenes / chemistry*
Polyvinyls / chemistry*
Solid Phase Extraction
Solutions
Waste Disposal, Fluid / methods
Water Pollutants, Chemical / chemistry*
Water Purification / methods*
Chemical
Reg. No./Substance:
0/Industrial Waste; 0/Polystyrenes; 0/Polyvinyls; 0/Solutions; 0/Water Pollutants, Chemical; 140-22-7/Diphenylcarbazide; 18540-29-9/chromium hexavalent ion; 37380-42-0/XAD-4 resin; 7440-47-3/Chromium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Prediction of functional outcome of ischemic stroke patients in northwest China.
Next Document:  Preparation, characterization and thermolysis of phenylenediammonium dinitrate salts.