Search Results - "Scheel, Guilherme Luiz"

Environmental stress evaluation of Coffea arabica L. leaves from spectrophotometric fingerprints by PCA and OSC–PLS–DA by Scheel, Guilherme Luiz, Pauli, Elis Daiane, Rakocevic, Miroslava, Bruns, Roy Edward, Scarminio, Ieda Spacino

“…The effects of hydric stress and sunlight access conditions on metabolic compounds in coffee leaves were investigated utilizing statistical mixture design…”
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Development of a Molecularly Imprinted Poly(Acrylic Acid)‐MWCNT Nanocomposite Electrochemical Sensor for Tramadol Determination in Pharmaceutical Samples by Ricardo Teixeira Tarley, César, Cássia Mendonça, Jhessica, Rianne da Rocha, Luana, Boareto Capelari, Tainara, Carolyne Prete, Maiyara, Cecílio Fonseca, Matheus, Midori de Oliveira, Fernanda, César Pereira, Arnaldo, Luiz Scheel, Guilherme, Bastos Borges, Keyller, Gava Segatelli, Mariana

“…A new voltammetric sensor based on molecularly imprinted poly(acrylic acid)‐MWCNT nanocomposite (MIP‐MWCNT) drop‐coated onto glassy carbon electrode (GCE) was…”
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Efeito do solvente na extração de ácidos clorogênicos, cafeína e trigonelina em Coffea arabica by Moreira, Ivanira, Scheel, Guilherme Luiz, Hatumura, Pedro Henrique, Scarminio, Ieda Spacino

“…In this research work the effects of four solvents and their mixtures on the extraction of chlorogenic acids, caffeine and trigonelline in crude extracts of…”
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Simultaneous microextraction of carbendazim, fipronil and picoxystrobin in naturally and artificial occurring water bodies by water-induced supramolecular solvent and determination by HPLC-DAD by Scheel, Guilherme Luiz, Teixeira Tarley, César Ricardo

“…Carbendazim, fipronil and picoxystrobin are pesticides widely utilized worldwide to enhance yield, improve quality and maximize economic returns of several…”
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Supramolecular microextraction combined with paper spray ionization mass spectrometry for sensitive determination of tricyclic antidepressants in urine by Oliveira, Fernanda Midori de, Scheel, Guilherme Luiz, Augusti, Rodinei, Tarley, César Ricardo Teixeira, Nascentes, Clésia Cristina

“…This work describes a novel methodology to analyze four tricyclic antidepressants (amitriptyline, doxepin, imipramine and, nortriptyline) in urine samples by…”
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Feasibility of supramolecular solvent-based microextraction for simultaneous preconcentration of herbicides from natural waters with posterior determination by HPLC-DAD by Scheel, Guilherme Luiz, Tarley, César Ricardo Teixeira

“…A supramolecular solvent-based microextraction procedure for preconcentration of four most common sugarcane herbicides (diuron, hexazinone, ametryn and…”
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Photodiode array chromatographic-spectrophotometric metabolite quantification for yerba-mate plant sexual dimorphism differentiation by Pauli, Elis Daiane, Scheel, Guilherme Luiz, Delaroza, Fernanda, Rakocevic, Miroslava, Bruns, Roy Edward, Scarminio, Ieda Spacino

“…A two-step analytical procedure to identify and quantify relative metabolic abundances in plants subjected to external stimuli is reported. Exploratory factor…”
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FT-IR biomarkers of sexual dimorphism in yerba-mate plants: Seasonal and light accessibility effects by Tormena, Cláudia Domiciano, Pauli, Elis Daiane, Marcheafave, Gustavo Galo, Scheel, Guilherme Luiz, Rakocevic, Miroslava, Bruns, Roy Edward, Scarminio, Ieda Spacino

“…[Display omitted] •Statistical mixture designs increase diversity of biomarkers in the FT-IR fingerprints.•Chemometric methods and FTIR assessed effects of…”
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Assessment of ultrasound-assisted extraction combined with supramolecular solvent-based microextraction for highly sensitive cadmium determination in medicinal plant sample by TS-FF-AAS by Suquila, Fabio Antonio Cajamarca, Scheel, Guilherme Luiz, de Oliveira, Fernanda Midori, Tarley, César Ricardo Teixeira

“…A new analytical method exploiting supramolecular solvent-based microextraction (SUPRAS) combined with ultrasound-assisted extraction to preconcentrate cadmium…”
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Feasibility study of ethylone determination in seized samples using boron-doped diamond electrode associated with solid phase extraction by Scheel, Guilherme Luiz, de Oliveira, Fernanda Midori, de Oliveira, Leandro Luan Gonçalves, Medeiros, Roberta Antigo, Nascentes, Clésia Cristina, Tarley, César Ricardo Teixeira

“…[Display omitted] •For the first time a voltammetric method has been reported for ethylone determination in seized street drugs.•The boron-doped diamond (BDD)…”
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Synthesis of Surface Molecularly Imprinted Poly(methacrylic acid-hemin) on Carbon Nanotubes for the Voltammetric Simultaneous Determination of Antioxidants from Lipid Matrices and Biodiesel by dos Santos Moretti, Ederson, de Oliveira, Fernanda Midori, Scheel, Guilherme Luiz, DalĺAntônia, Luiz Henrique, Borsato, Dionísio, Kubota, Lauro Tatsuo, Segatelli, Mariana Gava, Tarley, César Ricardo Teixeira

“…This paper reports the synthesis of novel nanocomposite based on multi-walled carbon nanotubes (MWCNT) covalently bonded by molecularly imprinted…”
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Synthesis and application of a bifunctional hybrid organic–inorganic adsorbent based on polyvinylimidazole-SiO2/APTMS for the extraction of arsenate in aqueous medium by Tarley, César Ricardo Teixeira, Scheel, Guilherme Luiz, Suquila, Fabio Antônio Cajamarca, Prete, Maiyara Carolyne, Dragunski, Douglas Cardoso, Segatelli, Mariana Gava, Junior, Affonso Gonçalves, Gorla, Felipe Augusto

“…In the present study, the synthesis and characterization of bifunctional organic–inorganic hybrid adsorbent for As(V) extraction in aqueous medium is…”
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