Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/53186
Type: Artigo de periódico
Title: A FLOW-CELL OPTOSENSOR FOR LEAD BASED ON IMMOBILIZED DITHIZONE
Author: DEOLIVEIRA, WA
NARAYANASWAMY, R
Abstract: Dithizone immobilized on XAD-4 resin has been studied as a sensor element of an optical sensor for lead using a flow-cell. Using this arrangement, lead in solution has been determined in the concentration range 1 x 10(-5)-3 x 10(-7)M with a detection limit of 1 x 10(-8)M (i.e., 2 mug/l.). The standard deviation of the method for the measurement of lead at a concentration of 1 x 10(-6)M was found to be 7%. The response of the sensor was reproducible and can be regenerated using 0.01M hydrochloric acid followed by citrate-hydroxylamine solution.
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/0039-9140(92)80132-W
Date Issue: 1992
Appears in Collections:Unicamp - Artigos e Outros Documentos

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