Application of a Biomimetic Sensor Based on Iron Phthalocyanine Chloride: 4-Methylbenzylidene-Camphor Detection
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Data
2010-01-01
Autores
Boni, Ana Carolina [UNESP]
Sotomayor, Maria Del Pilar Taboada [UNESP]
Lanza, Marcos R. V.
Tanaka, Sonia Maria C. N.
Tanaka, Auro A.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Soc Brasileira Quimica
Resumo
The construction and application of a biomimetic sensor for determination of 4-methylbenzylidene camphor (4-MBC), an ultraviolet (UV) radiation protector, are described. The sensor was prepared by modifying a carbon paste electrode with iron(III) phthalocyanine chloride (FePcCl). Amperometric measurements carried out with the sensor under an applied potential of 0.0 V vs. Ag vertical bar AgCl in a mixture of tetrahydrofuran and 0.1 mol L(-1) H(2)SO(4) solution (30:70 volume ratio) showed a linear response range from 1.8x10(-4) to 9.0x10(-4) mol L(-1). A detailed selectivity investigation for other nine UV filters was also performed. A sensor response mechanism was proposed and the results for 4-MBC quantification in commercial sunscreens and in water from swimming pools and rivers are presented.
Descrição
Palavras-chave
iron phthalocyanine, amperometric sensor, methylbenzylidene camphor
Como citar
Journal of The Brazilian Chemical Society. São Paulo: Soc Brasileira Quimica, v. 21, n. 7, p. 1377-1383, 2010.