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List of works by Joaquim A Nóbrega

A critical evaluation of digestion procedures for coffee samples using diluted nitric acid in closed vessels for inductively coupled plasma optical emission spectrometry

scientific article published on 21 February 2009

A new procedure for bovine milk digestion in a focused microwave oven: gradual sample addition to pre-heated acid

scientific article published on 30 January 2005

Aerosol dilution as a simple strategy for analysis of complex samples by ICP-MS.

scientific article published on 16 October 2017

An attempt to correlate fat and protein content of biological samples with residual carbon after microwave-assisted digestion.

scientific article published in October 2001

Analysis of waste electrical and electronic equipment (WEEE) using laser induced breakdown spectroscopy (LIBS) and multivariate analysis

scientific article

Analytical characteristics of a continuum-source tungsten coil atomic absorption spectrometer.

scientific article published in August 2005

Application of the interference standard method for the determination of sulfur, manganese and iron in foods by inductively coupled plasma mass spectrometry.

scientific article published on 2 September 2011

Asynchronous merging zones system: spectrophotometric determination of Fe(II) and Fe(III) in pharmaceutical products

scientific article published on 01 July 1999

Atomization of Al in a tungsten coil electrothermal atomic absorption spectrophotometer

scientific article published on 01 March 1999

Bismuth as a general internal standard for lead in atomic absorption spectrometry

scientific article published on 02 May 2014

Comparison of heating extraction procedures for Al, Ca, Mg, and Mn in tea samples

scientific article published on 01 March 2002

Determination of Cd and Pb in food slurries by GFAAS using cryogenic grinding for sample preparation

scientific article published on 04 May 2002

Determination of Cd, Cr, Hg and Pb in plastics from waste electrical and electronic equipment by inductively coupled plasma mass spectrometry with collision-reaction interface technology

scientific article published on 07 April 2011

Determination of cadmium and lead in mussels by tungsten coil electrothermal atomic absorption spectrometry

scientific article published on 01 December 1999

Determination of cadmium in hair and blood by tungsten coil electrothermal atomic absorption spectrometry with chemical modifiers

scientific article published on 01 March 1999

Determination of lead in medicinal plants by high-resolution continuum source graphite furnace atomic absorption spectrometry using direct solid sampling

scientific article published on 01 September 2012

Determination of mercury in agroindustrial samples by flow-injection cold vapor atomic absorption spectrometry using ion exchange and reductive elution

scientific article published on 01 March 2000

Determination of sulfur in biodiesel microemulsions using the summation of the intensities of multiple emission lines

scientific article published on 15 January 2011

Determination of total sulfur in agricultural samples by high-resolution continuum source flame molecular absorption spectrometry

scientific article published on 24 February 2011

Determination of trace sulfur in biodiesel and diesel standard reference materials by isotope dilution sector field inductively coupled plasma mass spectrometry.

scientific article published on 14 November 2013

Determination of vanadium in human hair slurries by electrothermal atomic absorption spectrometry

scientific article published on 28 February 2007

Determination of ytterbium in animal faeces by tungsten coil electrothermal atomic absorption spectrometry

scientific article published in November 1998

Direct analysis of deodorants for determination of metals by inductively coupled plasma optical emission spectrometry

scientific article published on 05 April 2018

Direct determination of Cd, Cu and Pb in wines and grape juices by thermospray flame furnace atomic absorption spectrometry.

scientific article published on 18 May 2008

Direct determination of Cu and Zn in fruit juices and bovine milk by thermospray flame furnace atomic absorption spectrometry

scientific article published in November 2004

Direct determination of sodium, potassium, chromium and vanadium in biodiesel fuel by tungsten coil atomic emission spectrometry

scientific article

Effect of simultaneous cooling on microwave-assisted wet digestion of biological samples with diluted nitric acid and O2 pressure

scientific article published on 04 June 2014

Evaluation and application of bismuth as an internal standard for the determination of lead in wines by simultaneous electrothermal atomic absorption spectrometry

scientific article published on 01 January 2002

Evaluation of oxygen pressurized microwave-assisted digestion of botanical materials using diluted nitric acid.

scientific article published on 17 November 2010

Evaluation of selenium behavior in thermospray flame furnace atomic absorption spectrometry

scientific article published on 10 May 2007

Flow injection potentiometric determination of saccharin in dietary products with relocation of filtration unit

scientific article published on 01 May 1994

Flow injection spectrophotometric determination of aspartame in dietary products

scientific article published on 01 September 1994

Flow injection spectrophotometric determination of nitrate in electrolyte of lead-acid batteries

scientific article published on 01 December 1997

Flow injection spectrophotometric method for chloride determination in natural waters using Hg(SCN)(2) immobilized in epoxy resin.

scientific article published in February 2005

Flow-injection spectrophotometric determination of ascorbic acid in pharmaceutical products with the Prussian Blue reaction.

scientific article published in June 1996

Focused microwave-induced combustion for digestion of botanical samples and metals determination by ICP OES and ICP-MS

scientific article published on 28 March 2012

Focused microwave-induced combustion: a new technique for sample digestion

scientific article published on 01 March 2010

Focused-microwave-assisted reaction in flow injection spectrophotometry: a new liquid-vapor separation chamber for determination of reducing sugars in wine.

scientific article published in October 2001

Improvement of sensitivity in flow analysis by exploiting a multi-reversed software-assisted system

scientific article published on 24 March 2007

In situ digestion for the determination of Ca in beverages by tungsten coil atomic emission spectrometry

scientific article published on 27 April 2012

Inductively coupled plasma mass spectrometry and standard dilution analysis applied to concentrated acids.

scientific article published on 19 September 2016

Investigation of analyte losses using microwave-assisted sample digestion and closed vessels with venting.

scientific article published on 22 July 2016

Microwave-Assisted Acid Decomposition of Animal- and Plant-Derived Samples for Element Analysis

scientific article published in July 2002

Microwave-assisted digestion of organic samples: how simple can it become?

scientific article published on 06 July 2012

Microwave-assisted digestion procedures for biological samples with diluted nitric acid: identification of reaction products

scientific article published on 9 April 2009

Microwave-assisted diluted acid digestion for trace elements analysis of edible soybean products

scientific article published on 25 November 2014

Multi-element determination in acid-digested soy protein formulations by inductively coupled plasma-optical emission spectrometry

scientific article published on 01 May 2008

Multi-energy calibration applied to atomic spectrometry.

scientific article published on 30 June 2017

Multi-isotope calibration for inductively coupled plasma mass spectrometry.

scientific article published on 22 November 2017

Multielemental Determination of As, Bi, Ge, Sb, and Sn in Agricultural Samples Using Hydride Generation Coupled to Microwave-Induced Plasma Optical Emission Spectrometry

scientific article published on 26 May 2017

Multivariate Classification of Cigarettes According to Their Elemental Content Determined by Inductively Coupled Plasma Optical Emission Spectrometry

scientific article published on 01 April 2007

Performance evaluation of a high-pressure microwave-assisted flow digestion system for juice and milk sample preparation

scientific article published on 26 May 2017

Performance evaluation of collision-reaction interface and internal standardization in quadrupole ICP-MS measurements

scientific article published on 28 September 2011

Sample preparation for arsenic speciation in terrestrial plants--a review

scientific article

Single vessel procedure for acid vapor partial digestion of bovine liver in a focused microwave: multielement determination by ICP-OES

scientific article published on 17 October 2003

Study of macro and microelements in fish from the Cienfuegos Bay. Relationship with its content in sediments.

scientific article published in August 2017

The use of silica-immobilized brown alga (Pilayella littoralis) for metal preconcentration and determination by inductively coupled plasma optical emission spectrometry

scientific article published on 01 August 2003

Tungsten coil atomic emission spectrometry combined with dispersive liquid-liquid microextraction: A synergistic association for chromium determination in water samples

scientific article published on 16 April 2015

Tungsten permanent chemical modifier for fast estimation of Se contents in soil by graphite furnace atomic absorption spectrometry.

scientific article

Use of the internal standardization for difficult sampling by graphite furnace atomic absorption spectrometry

scientific article published on 01 October 2004

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