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    
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.
N Rajesh; Rohit Kumar Jalan; Pinky Hotwany
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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    
Chemistry Group, Birla Institute of Technology and Science, Pilani, Rajasthan 333031, India.
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MeSH Terms
Chromium / chemistry*
Diphenylcarbazide / chemistry*
Industrial Waste
Polystyrenes / chemistry*
Polyvinyls / chemistry*
Solid Phase Extraction
Waste Disposal, Fluid / methods
Water Pollutants, Chemical / chemistry*
Water Purification / methods*
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

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