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List of works by Ricardo J. Cassella

A batch and fixed bed column study for fluorescein removal using chitosan modified by epichlorohydrin.

scientific article published on 29 September 2017

A novel strategy based on in-syringe dispersive liquid-liquid microextraction for the determination of nickel in chocolate samples

scientific article published on 25 September 2018

Adsorption of the herbicides diquat and difenzoquat on polyurethane foam: Kinetic, equilibrium and computational studies.

scientific article published on 09 August 2017

Application of the extraction induced by emulsion breaking for the determination of Cu, Fe and Mn in used lubricating oils by flame atomic absorption spectrometry

scientific article published on 15 March 2013

Application of the extraction induced by emulsion breaking for the determination of chromium and manganese in edible oils by electrothermal atomic absorption spectrometry

scientific article published on 24 May 2012

Characterization of solid-phase extraction of Fe(III) by unloaded polyurethane foam as thiocyanate complex

scientific article published on 30 July 2007

Determination of Cu, Fe, Mn and Zn by flame atomic absorption spectrometry in multivitamin/multimineral dosage forms or tablets after an acidic extraction

scientific article published on 13 July 2006

Determination of acetate and formate in vegetable oils by ion chromatography after multivariate optimization of the extraction process using a Doehlert design

scientific article published on 03 July 2018

Determination of cocaine in Real banknotes circulating at the State of Rio de Janeiro, Brazil

scientific article published on 19 February 2015

Determination of lithium in pharmaceutical formulations used in the treatment of bipolar disorder by flow injection analysis with spectrophotometric detection

scientific article

Determination of metals in soft drinks packed in different materials by ETAAS.

scientific article published on 14 April 2015

Determination of rosuvastatin in urine by spectrofluorimetry after liquid-liquid extraction and derivatization in acidic medium

scientific article published on 18 August 2012

Determination of total protein in hyperimmune serum samples by near-infrared spectrometry and multivariate calibration

scientific article published on 13 October 2009

Development of a flow-injection analysis system with fluorescence detection for gatifloxacin determination in organized medium.

scientific article

Development of a focused ultrasound-assisted extraction method for the determination of trace concentrations of Cr and Mn in pharmaceutical formulations by ETAAS.

scientific article published on 16 November 2012

Development of a method for total Hg determination in oil samples by cold vapor atomic absorption spectrometry after its extraction induced by emulsion breaking

scientific article published on 23 October 2014

Development of a reversed FIA system for the spectrophotometric determination of Sb(III) and total Sb in antileishmanial drugs

scientific article

Development of an extraction method for the determination of inorganic anions (chloride, sulfate and phosphate) in edible oils from different origins by ion chromatography

scientific article published on 19 July 2018

Development of an integrated flow injection system for the electro-oxidative leaching of uranium from geological samples and its spectrophotometric determination with Arsenazo III

scientific article published on 21 May 2008

Development of an ultrasonic slurry sampling method for the determination of Cu and Mn in antibiotic tablets by electrothermal atomic absorption spectrometry

scientific article published on 07 April 2012

Diffuse reflectance determination of Malachite Green using polyurethane foam as solid support and sodium dodecylsulfate as counter ion.

scientific article published on 30 April 2011

Direct determination of arsenic and antimony in naphtha by electrothermal atomic absorption spectrometry with microemulsion sample introduction and iridium permanent modifier

scientific article published on 18 February 2004

Direct determination of manganese in produced waters from petroleum exploration by Electrothermal Atomic Absorption Spectrometry using Ir-W as permanent modifier

scientific article published on 05 April 2011

Direct determination of sitagliptin in pharmaceutical formulations and its determination in urine after solid-phase extraction by spectrofluorimetry

scientific article published on 15 November 2012

Direct determination of sorbitol and sodium glutamate by attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) in the thermostabilizer employed in the production of yellow-fever vaccine

scientific article

Direct determination of vanadium in high saline produced waters from offshore petroleum exploration by electrothermal atomic absorption spectrometry

scientific article published on 21 September 2005

Distribution of copper in the vicinity of a deactivated mining site at Carajás in the Amazon region of Brazil

scientific article

Employment of polyurethane foam for the adsorption of Methylene Blue in aqueous medium

scientific article published on 23 February 2008

Evaluation of Copper and Manganese Concentrations in Commercial Fruit Juices and Nectars Consumed in Brazil by GF AAS

scientific article published on 16 October 2020

Evaluation of a semi-permeable membrane device (SPMD) for passive sampling of solar filters from swimming pool waters and determination by HPLC-DAD

scientific article published on 15 April 2019

Extraction induced by microemulsion breaking as a novel tool for the simultaneous determination of Cd, Mn, Pb and Sb in gasoline samples by ICP-MS and discrete sample introduction

scientific article published on 09 August 2019

Flow injection determination of cobalt after its sorption onto polyurethane foam loaded with 2-(2-thiazolylazo)-p-cresol (TAC)

scientific article published on 01 March 2001

Flow injection/atomic absorption spectrometric determination of zineb in commercial formulations of pesticide based on slurry sampling.

scientific article published in November 2002

Fluorescence determination of azithromycin in pharmaceutical formulations by using the synchronous scanning approach after its acid derivatization

scientific article published on 29 August 2012

Modeling, kinetic, and equilibrium characterization of paraquat adsorption onto polyurethane foam using the ion-pairing technique.

scientific article published on 4 April 2015

Multivariate optimization of a liquid-liquid extraction of the EPA-PAHs from natural contaminated waters prior to determination by liquid chromatography with fluorescence detection

scientific article

Multivariate optimization of a microwave-assisted leaching procedure using dilute acid solutions, for FAAS determination of Cu, Fe, Mn, and Zn in multivitamin/multimineral supplements

scientific article published on 03 January 2007

Multivariate optimization of the determination of zinc in diesel oil employing a novel extraction strategy based on emulsion breaking

scientific article published on 28 February 2011

Multivariate technique for optimization of digestion procedure by focussed microwave system for determination of Mn, Zn and Fe in food samples using FAAS

scientific article published on 01 February 2006

Novel extraction induced by emulsion breaking as a tool for the determination of trace concentrations of Cu, Mn and Ni in biodiesel by electrothermal atomic absorption spectrometry.

scientific article

Novel extraction induced by microemulsion breaking: a model study for Hg extraction from Brazilian gasoline

scientific article published on 06 October 2016

Novel spectrophotometric method for the determination of aluminum in soda drinks packed in cans and plastic bottles

scientific article published on 13 May 2010

On-line preconcentration and determination of Zn in natural water samples employing a styrene-divinylbenzene functionalized resin and flame atomic absorption spectrometry

scientific article published in August 2005

On-line solid phase extraction with polyurethane foam: trace level spectrophotometric determination of iron in natural waters and biological materials

scientific article published in August 2002

Polyurethane foam loaded with SDS for the adsorption of cationic dyes from aqueous medium: Multivariate optimization of the loading process

scientific article published on 19 January 2009

Polyurethane foam loaded with sodium dodecylsulfate for the extraction of 'quat' pesticides from aqueous medium: Optimization of loading conditions.

scientific article

Precipitation-dissolution system for silver preconcentration and determination by flow injection flame atomic absorption spectrometry.

scientific article published in March 2002

Rapid on-line sample dissolution assisted by focused microwave radiation for silicate analysis employing flame atomic absorption spectrometry: iron determination

scientific article published on 01 March 2004

Sorption of the herbicides diquat and difenzoquat from aqueous medium by polymeric resins in the presence of sodium dodecylsulfate: Kinetic and mechanistic study

scientific article published on 12 April 2016

Speciation of inorganic antimony (III & V) employing polyurethane foam loaded with bromopyrogallol red.

scientific article

Synthesis and application of a functionalized resin for flow injection/F AAS copper determination in waters

scientific article published on 20 March 2005

Ultrasensitive and rapid immuno-detection of human IgE anti-therapeutic horse sera using an electrochemical immunosensor

scientific article

Use of a versatile, easy, and rapid atmospheric monitor (VERAM) passive samplers for pesticide determination in continental waters

scientific article published on 12 October 2016

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