Document Detail

Determination of mercury in fish by cold vapor atomic absorption spectrophotometry using a multicommuted flow injection analysis system.
MedLine Citation:
PMID:  16772686     Owner:  NLM     Status:  MEDLINE    
A flow system was developed for the determination of total mercury concentration in fish samples by cold vapor atomic absorption spectrophotometry (CVAAS), based on the multicommuted flow injection analysis (MCFIA) approach. The system uses independently controlled solenoid valves for the introduction of reagents and samples. When not injected, solutions were recirculating to the reservoir bottles, in this way reducing the waste produced by the analytical system and also the sample consumption. Results were compared to those obtained by the reference flow injection procedure. Accuracy was also assessed by recovery studies using a certified reference material as well as spiked samples; recovery percentages in the range of 90.7% to 99.8% were found. The repeatability of the method was better than 6.0% (RSD, n = 10). A limit of detection of 4.8 microg of mercury per kg of fresh fish sample was achieved. The total waste produced was reduced to 30% of that from the reference flow injection CVAAS procedure.
M Fátima Silva; Ildikó V Tóth; António O S S Rangel
Related Documents :
7684956 - Improvement and assessment of enzyme-linked immunosorbent assay to detect low fk506 con...
11033026 - Apoptosis: a method for evaluating the cryopreservation of whole blood and peripheral b...
11034266 - Accuracy of cyclosporin measurements made in capillary blood samples obtained by skin p...
10711766 - Erythrocytes stored in cpd sag-mannitol: evaluation of their deformability.
12566976 - Effects of insulin on coronary blood flow in anesthetized pigs.
16985276 - An in vitro study of magnetic particle targeting in small blood vessels.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Analytical sciences : the international journal of the Japan Society for Analytical Chemistry     Volume:  22     ISSN:  0910-6340     ISO Abbreviation:  Anal Sci     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-14     Completed Date:  2007-05-24     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  8511078     Medline TA:  Anal Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  861-4     Citation Subset:  IM    
Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Porto, Portugal.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Chemistry Techniques, Analytical / methods
Environmental Pollutants / analysis
Flow Injection Analysis / instrumentation*,  methods*
Mercury / toxicity*
Mercury Poisoning / diagnosis*
Reproducibility of Results
Spectrophotometry, Atomic / instrumentation*,  methods*
Water Pollutants, Chemical / analysis
Reg. No./Substance:
0/Environmental Pollutants; 0/Water Pollutants, Chemical; 7439-97-6/Mercury

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

Previous Document:  Determination of titanium and vanadium in Ziegler-Natta catalysts by inductively coupled plasma atom...
Next Document:  Bis(2-hydroxyacetophenone)ethylenediimine as a neutral carrier in a coated-wire membrane electrode f...