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Epoxy resin as a new alternative sorbent phase for stir bar sorptive extraction for the determination of triclosan and methyl-triclosan.
Stoski, Jackeline; Leite, Natalicio F; da Paixão, Ronei E; Abate, Gilberto.
Afiliação
  • Stoski J; a Departamento de Química , Universidade Federal do Paraná, Centro Politécnico , Curitiba , PR , Brazil.
  • Leite NF; b Instituto de Tecnologia do Paraná, Rua Professor Algacyr Munhoz Mader , Curitiba , PR , Brazil.
  • da Paixão RE; b Instituto de Tecnologia do Paraná, Rua Professor Algacyr Munhoz Mader , Curitiba , PR , Brazil.
  • Abate G; b Instituto de Tecnologia do Paraná, Rua Professor Algacyr Munhoz Mader , Curitiba , PR , Brazil.
J Environ Sci Health A Tox Hazard Subst Environ Eng ; 52(12): 1133-1140, 2017 Oct 15.
Article em En | MEDLINE | ID: mdl-28758837
The main objective of this study is to propose a new sorbent phase based on a commercial epoxy resin, for use as an alternative sorbent in the stir bar sorptive extraction (SBSE) technique. The analytes triclosan (TCS) and methyl-triclosan (MTCS) were selected in order to demonstrate the application of the bars, using some water samples as matrices. The extraction conditions of sample volume, stirring time, pH, temperature and ionic strength were evaluated, and for the back extraction, the bars were sonicated using 1.00 mL of acetonitrile for 10 min. The technique of liquid chromatography using a diode array detector was employed for the quantitation. Analytical curves of between 2.50 and 50.0 µg L-1 with r2 of 0.9894 (TCS) and 0.9933 (MTCS), and limit of detection (LOD) values of 0.6 µg L-1 (TCS) and 2.0 µg L-1 (MTCS) were observed. Recovery values between 100.4% and 121.6% were verified for ultrapure water and between 50.3% and 93.8% for wastewater samples, thereby suggesting the possibility of employing the bars for quantitation of TCS and MTCS in aqueous samples. This is the first time that this resin has been applied without the need for the adhesion of any additional sorbent phase, thereby providing a simple and low-cost method. Another feature is that only eight bars were employed in the entire work, and each bar was used approximately 40 times with the same performance without memory effects.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Triclosan / Poluentes Químicos da Água / Resinas Epóxi / Águas Residuárias Idioma: En Revista: J Environ Sci Health A Tox Hazard Subst Environ Eng Assunto da revista: TOXICOLOGIA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Triclosan / Poluentes Químicos da Água / Resinas Epóxi / Águas Residuárias Idioma: En Revista: J Environ Sci Health A Tox Hazard Subst Environ Eng Assunto da revista: TOXICOLOGIA Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido