1. Heavy Metal Bioaccumulation in Enteromorpha intestinalis, (L.) Nees, a Macrophytic Algae: The Example of Kadin Creek (Western Anatolia)

ABSTRACT This study aims to specify the amount of ten heavy metals (Al, Cr, Mn, Ni, Cu, Zn, As, Cd, Hg, Pb) in water, sediment and Enteromorpha intestinalis samples gathered from Kadin Creek in seasonal periods in 2011 and 2012 and to reveal bioaccumulation capability of this macrophytic algae. In this regard, heavy metal concentrations in the gathered sampl

Braz. arch. biol. technol.. Publicado em: 29/10/2018

2. Elementos essenciais, teores de óleo e proteína de híbridos de girassol cultivados no Brasil

Resumo No presente trabalho, foram determinados os elementos minerais, os teores de óleo e proteína de 13 híbridos de girassol. Além disso, foi avaliada a possibilidade de se obterem, conjuntamente, produtos com alta produtividade e altos teores de óleo e proteína. A pesquisa mostrou alta produtividade de aquênios, excedendo a média nacional, princi

Braz. J. Food Technol.. Publicado em: 06/09/2018

3. Arsenic Speciation in Fish and Rice by HPLC-ICP-MS Using Salt Gradient Elution

This paper presents arsenic speciation studies by high-performance liquid chromatography with inductively coupled plasma-mass spectrometer (HPLC-ICP-MS) using a chromatography column containing a strong anion exchange stationary phase (Agilent Bio SAX G3154A/101) for determination of arsenobetaine (AsB), dimethylarsinic acid (DMA), AsIII, monomethylarsonic a

J. Braz. Chem. Soc.. Publicado em: 2018-08

4. Evaluation of metals in tomato sauces stored in different types of packaging

Abstract There is a growing concern about health and food safety when it comes to processed food. In the present study, it has been hypothesized that tomato sauces contain high amounts of metals possibly leached from packaging. Concentrations of As, Cd, Pb, Cr, Ni, Sn and Sb were determined by ICP-MS in tomato sauces stored in metallic, plastic, cellulosic

Food Sci. Technol. Publicado em: 26/07/2018

5. Fit-for-Purpose ICP-MS Procedure Supporting Brazilian Regulations on Inorganic Constituents in Fresh and Saline Waters

This work aimed the development of an analytical procedure using inductively coupled plasma mass spectrometry (ICP-MS) in four modes of operation for simple and fast determination of Al, Ag, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Li, Mg, Mn, Na, Ni, Pb, Sb, Se, Tl, Hg, V, U, and Zn in fresh and sea water samples attending simultaneously four Brazilian regula

J. Braz. Chem. Soc.. Publicado em: 2018-07

6. Concentrações de metais pesados nos sedimentos do lago Água Preta (Pará, Brasil)

RESUMO O presente trabalho consistiu em avaliar as concentrações de nutrientes e metais pesados nos sedimentos do fundo do lago Água Preta, localizado na Região Metropolitana de Belém, Estado do Pará. As concentrações de metais pesados foram obtidas por espectrometria de emissão por plasma acoplado a espectrometria de massas (ICP-MS). Os metais que

Eng. Sanit. Ambient.. Publicado em: 2018-06

7. Qualitative and Quantitative Chemical Investigation of Orthopedic Alloys by Combining Wet Digestion, Spectroanalytical Methods and Direct Solid Analysis

In this study, two laser-based techniques, laser-induced breakdown spectroscopy (LIBS) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) were used for analytical signal evaluation of Ti, Al, and V and investigation of possible harmful elements eventually present as minor elements in Ti alloys. Due to the lack of certified reference

J. Braz. Chem. Soc.. Publicado em: 2018-04

8. A cathodoluminescence-assisted LA-ICP-MS study of topaz from different geological settings

ABSTRACT: In this study, the crystallization dynamics and the fingerprints of two topaz crystals from the Ouro Preto region (Brazil), two from the Eastern Brazilian Pegmatite Province (EBPP), one from the Western part of the United States (US) and one from Pakistan were characterized. The combination of scanning electron microscope-cathodoluminescence (SEM-C

Braz. J. Geol.. Publicado em: 2018-01

9. Determinação da concentração de arsênio, cádmio e chumbo em amostras de erva-mate comercializadas no Sul do País por espectrometria de massa com plasma indutivamente acoplado

RESUMO: A erva-mate (Ilex paraguariensis) é uma planta originária da América do Sul, consumida habitualmente na Argentina, Paraguai, Uruguai e no sul do Brasil. Pesquisas, recentes, detectaram na erva-mate a presença de muitas vitaminas e metais. Esses metais podem fazer parte da composição mineral da planta ou por contaminação dos solos e águas pel

Cienc. Rural. Publicado em: 07/12/2017

10. Determination of Selenium in Bovine Semen by ICP-MS Using Formic Acid for Sample Preparation

Determination of Se by inductively coupled plasma mass spectrometry (ICP-MS) can be difficult due to spectral interferences; however, these interferences can be eliminated by using collision-reaction interface (CRI) technology. A simple and fast procedure for determination of total Se concentration in bovine semen by ICP-MS after sample solubilization with d

J. Braz. Chem. Soc.. Publicado em: 2017-12

11. Evaluation of Distribution and Bioaccumulation of Arsenic by ICP-MS in Tilapia (Oreochromis niloticus) Cultivated in Different Environments

The concentration of arsenic in tissues of tilapia was evaluated and an estimation of the risks associated with the consumption of this fish was done, taking into account the guidelines established by FAO/WHO. The inductively coupled plasma mass spectrometry (ICP-MS) technique in kinetic energy discrimination (KED) mode was employed and certified reference m

J. Braz. Chem. Soc.. Publicado em: 2017-12

12. Synthesis, Characterization and Enhanced Photocatalytic Activity of Iron Oxide/Carbon Nanotube/Ag-doped TiO2 Nanocomposites

A novel magnetically recoverable catalyst (Fe/MWCNT/TiO2-Ag) was prepared in this study by a process that involves few steps. Titanium dioxide doped with silver and iron oxide was deposited on support of multi-walled carbon nanotubes (MWCNT). The synthesized catalysts were characterized by inductively coupled plasma mass spectrometry (ICP-MS), N2 adsorption/

J. Braz. Chem. Soc.. Publicado em: 2017-12