Fernanda C.O.L. Martins

Green and reusable pipette tip-solid phase microextraction for the simultaneous determination of butylated hydroxyanisole, butylated hydroxytoluene, and tert-butylhydroquinone in complex food matrices by RPLC-UV

Fernanda C.O.L. Martins, Wanessa R. Melchert

A new environmentally friendly method was developed for extracting butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), and tert-butylhydroquinone (TBHQ) from food samples, followed by analysis using RPLC-UV. Therefore, the conditions of the pipette tip-solid phase microextraction (PT-SPE) were optimized to enhance the selectivity …

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Intrinsically microporous polymer (PIM-1) enhanced degradation of heptadecafluoro-1-nonanol at graphitic carbon nitride (g-C 3 N 4 )

Fernanda C.O.L. Martins, Wanessa R. Melchert, Akalya Karunakaran, C. R. Bowen et autres

) with an intrinsically microporous polymer (PIM-1) to enhance interaction with heptadecafluoro-1-nonanol (as a PFAS model).

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Environmentally friendly SLPME of propineb and mancozeb from tomato and rice

Fernanda C.O.L. Martins, Wanessa R. Melchert

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Photo-potentiometry: Sensing of sugars using a pH-probe coated with a film of intrinsically microporous polyamine containing graphitic carbon nitride photocatalyst

Fernanda C.O.L. Martins, Wanessa R. Melchert, Mariolino Carta, Neil B. McKeown et autres

At proof-of-concept level, the photochemical transformation of glucose (or more generally of carbohydrates) can be detected analytically as a localised pH change. Using a conventional potentiometric pH-probe, a microporous coating is developed to explore carbohydrate sensing in the 200–800 μM concentration range …

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Solid-liquid phase microextraction coupled to digital images for determination of dithiocarbamates in food samples

Fernanda C.O.L. Martins, Wanessa R. Melchert

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ICP OES combined with chemometric tools to differentiate green coffee beans in special or traditional

Winston Pinheiro Claro Gomes, Gustavo Maximiano Alves, Fernanda C.O.L. Martins, Wanessa R. Melchert

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Photo-Potentiometry: Sensing of Sugars Using a Ph-Probe Coated with a Film of Intrinsically Microporous Polyamine Containing Graphitic Carbon Nitride Photocatalyst

Fernanda C.O.L. Martins, Wanessa R. Melchert, Mariolino Carta, Neil B. McKeown et autres

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Environmentally friendly LLME-LTP of the bisphenol A from bovine milk samples

Natalia N. Teixeira, Fernanda C.O.L. Martins, Wanessa R. Melchert

This paper developed a novel and environmental microextraction for bisphenol A from milk samples using liquid-liquid microextraction with low-temperature partitioning, which is a sample clean-up step for endocrine disruptors, being a suitable alternative. Furthermore, the microextraction and determination steps were optimized to …

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Spectrophotometric determination of bisphenol A in beverages using multi-dispersion calibration

Vivian Maringolo, Alexandre Z. Carvalho, Paula Homem‐de‐Mello, Mateus Zanotto et autres

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Environmentally friendly and novel solid–liquid phase microextraction of maneb fungicide in fruits and vegetables

Fernanda C.O.L. Martins, Wanessa R. Melchert

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New Approaches in Electroanalytical Determination of Triazines-Based Pesticides in Natural Waters

Fernanda C.O.L. Martins, Djenaine De Souza

This study describes the preparation and use of a dental amalgam electrode for the voltammetric determination of triazine-based pesticides ametryn, atrazine, and simazine in natural waters, using square wave voltammetry. The experimental and voltammetric parameters were previously optimized, and analytical curves were …

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Environmentally Friendly LIME-LTP of the Bisphenol a from Milk Samples

Natalia N. Teixeira, Fernanda C.O.L. Martins, Wanessa R. Melchert

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