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Measurement of volatilized mercury by a mini-system: a simple, reliable and reproducible technique BABT
Cursino,Luciana; Mattos,Silvânia V. M.; Silva,Nilton O.; Chartone-Souza,Edmar; Nascimento,Andréa M. A..
A simple and easy new technique for volatilized mercury determination in biological systems was developed. This technique is fast and sensitive and can overcome the problems that arise due to the extremely low readings during the measurements and reproducibility in biological material (bacteria). It measures directly the volatilized metallic mercury of bacteria by means of a chemical adsorbent in a coupled mini-system, as a modified technique for mercury in air analysis. It is potentially of interest to the bioremediation and bacterial mercury resistance communities
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteria; Biological system; Measurement; Mercury; Volatilization.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400028
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Correlation between K, Mn, Fe, Cu and Zn in natural honeys from Eucalyptus sources BABT
Mattos,Silvânia V. M.; Bastos,Esther M.; Dayrell,Ilda O.; Nelson,David L..
Thirty-five natural honey samples from three apicultural regions of the state of Minas Gerais, Brazil, were collected from honeybee hives under various climatic conditions over a two-year period. The beehives were located in the districts of Bom Jesus do Amparo, Barão de Cocais and São Gonçalo do Rio Abaixo, all within a 100 km radius of Belo Horizonte, Minas Gerais, Brazil. The pollinic spectrum, color and ash, moisture, K, Fe, Mn, Cu and Zn contents were determined. Elemental analysis were done by flame atomic absorption spectrometry. Accuracy and precision were verified by recovery tests and relative standard deviation, respectively. The mean mineral contents encountered were K = 1130; Mn = 3.88; Fe = 2.79; Zn = 2.34 and Cu = 0.54 µ g/g. During the dry...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Honey; Honey mineral content; Pollinic analysis; Eucalyptus.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000200001
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