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Determination of parabens in wastewater samples via robot-assisted dynamic single-drop microextraction and liquid chromatography-tandem mass spectrometry.
Bocelli, Marcio David; Vargas Medina, Deyber Arley; Rodriguez, Julie Paulin García; Lanças, Fernando Mauro; Santos-Neto, Álvaro José.
Afiliação
  • Bocelli MD; São, Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
  • Vargas Medina DA; São, Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
  • Rodriguez JPG; São, Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
  • Lanças FM; São, Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
  • Santos-Neto ÁJ; São, Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
Electrophoresis ; 43(15): 1567-1576, 2022 08.
Article em En | MEDLINE | ID: mdl-35567359
Dynamic single-drop microextraction (SDME) was automatized employing an Arduino-based lab-made Cartesian robot and implemented to determine parabens in wastewater samples in combination with liquid chromatography-tandem mass spectrometry. A dedicated Arduino sketch controls the auto-performance of all the stages of the SDME process, including syringe filling, drop exposition, solvent recycling, and extract collection. Univariate and multivariate experiments investigated the main variables affecting the SDME performance, including robot-dependent and additional operational parameters. Under selected conditions, limit of detections were established at 0.3 µg/L for all the analytes, and the method provided linear responses in the range between 0.6 and 10 µg/L, with adequate reproducibility, measured as intraday relative standard deviations (RSDs) between 5.54% and 17.94%, (n = 6), and inter-days RSDs between 8.97% and 16.49% (n = 9). The robot-assisted technique eased the control of dynamic SDME, making the process more feasible, robust, and reliable so that the developed setup demonstrated to be a competitive strategy for the automated extraction of organic pollutants from water samples.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Robótica / Microextração em Fase Líquida Idioma: En Revista: Electrophoresis Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Robótica / Microextração em Fase Líquida Idioma: En Revista: Electrophoresis Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha