This Issue brings an Editorial by Prof. Dr. Mauro Bertotti (IQ-USP, BRA); Interview with Prof. Dr. Edenir R. Pereira Filho (Dept. of Chemistry-UFSCar, BRA); Point of View “The Case of the Limit of Detection” by Prof. Dr. George L. Donati (Wake Forest University, USA); Letter “Nanostructured Materials as an Analytical Strategy to Unravel and Treat Human Diseases: The Practical Challenges Behind the Theory” by Prof. Dr. Jemmyson Romário de Jesus (UFV, BRA); 2 Reviews on “Regional and Global Scale Challenges for Controlling Arsenic Contamination…” and “AIMS Applications and New Trends…”; 2 Articles on “Comparison of ZIFs as adsorbents of arsenic species…” and “Evaluation of a lignin bio-alkyd resin for the selective determination of molybdenum…”; 2 TechNotes on “How sodiation influences the sucralose behavior under EIMS” and “Chemical characterization in the production chain of permanent magnets by ICP OES”; and a Feature on “The 45th RASBQ”.
Edenir R. Pereira Filho, a researcher with a broad and solid background in science and also a YouTuber, recently gave an interview to BrJAC
Prof. Dr. Edenir Rodrigues Pereira Filho
Dept. of Chemistry, Federal University of São Carlos, SP, Brazil
“... the interaction between Brazilian researchers and industry must be more collaborative, and the dialogue should be improved...”
The Case of the Limit of Detection
Prof. Dr. George L. Donati
Department of Chemistry, Wake Forest University, Winston-Salem, NC, USA
“… ‘the case of the LOD’ may foster an awareness that could facilitate the identification of instances in which the connection between different concepts is essential: from adequate reporting of analytical results to new ideas and discoveries.”
Nanostructured Materials as an Analytical Strategy to Unravel and Treat Human Diseases: The Practical
Challenges Behind the Theory
Prof. Dr. Jemmyson Romário de Jesus
Dept of Chemistry, Federal University of Viçosa, MG, Brazil
“... more studies are needed to develop an adequate, reproducible, and validated method that allows for the synthesis and characterization of safe nanomaterials for medical practices. In general, there are at least three major challenges ...”
Regional and Global Scale Challenges for Controlling Arsenic Contamination in Agricultural Soil,
Water Supplies, Foods and Ayurvedic Medicines
Victor G. Mihucz
The aim of this review is to give a brief overview on the main As speciation methods and to present how to control As contamination at local and global scales in several environmental and biological samples, as well as complementary and alternative medicinal products marketed as food supplements.
Ambient Ionization Mass Spectrometry: Applications and New Trends for Environmental Matrices
Andréa Rodrigues Chaves, Rafael Oliveira Martins, Lanaia Ítala Louzeiro Maciel, Allyster Rodrigues Silva, Daniel Vieira Gondim, Júlia Martins Fortalo, Steffany de Souza Santos, Jussara Valente Roque, Boniek Gontijo Vaz
This study aims to contribute with an overview of the 2016 to 2021 period of ambient mass spectrometry methods for applications in environmental analysis. In this context, this review reports applications especially for qualitative and quantitative analysis of contaminants using DESI, DART, PSI and EESI methods.
Comparative Study Between Two Zeolitic Imidazolate Frameworks as Adsorbents for Removal of
Organoarsenic, As(III) and As(V) Species from Water
Khalil Ahmad, Habib-ur-Rehman Shah, Muhammad Ahmad, Muhammad Mahboob Ahmed, Khalida Naseem, Nagina Naveed Riaz, Ali Muhammad, Asif Ayub, Munir Ahmad, Zahoor Ahmad, Alisha Munwar, Abdul Rauf, Riaz Hussain, Muhammad Ashfaq
Water-stable zeolitic imidazolate frameworks (ZIF) with zinc and cobalt cations were synthesized and compared in terms of their adsorption capacity and removal efficiency to remove arsenic species from water.
Evaluation of a Lignin Bio-alkyd Resin for the Selective Determination of Molybdenum in Biological,
Pharmaceutical, Fertilizer and Water Samples
Elhossein A. Moawed, Sara M. Ragab, Amira R. El-Shobaky, Maha A. El Hagrasy
LA-Resin was synthesized and characterized by SEM, FTIR, X-ray diffraction and thermal analysis. The LA-Resin performance was assessed for the uptake of Mo followed by UV-Vis determination. The developed quantitative method was validated and applied for the preconcentration and separation of Mo from the samples.
How Sodiation Influences the Sucralose Behavior under Electrospray Ionization Mass
Paulo de Tarso Ferreira Sales, Katia Maria de Souza, Alyne Gonçalves Bezerra, Satu Anneli Ojala, Sérgio Botelho de Oliveira, Pierre Alexandre dos Santos, Maria Teresa Freitas Bara
In this work, the authors used quantum chemistry calculations and mass spectrometry data from differential functional theory to understand why the sodiated sucralose is more stable than the protonated one under mass spectrometry conditions.
Chemical Characterization in the Production Chain of Permanent Magnets by Inductively Coupled Plasma
Optical Emission Spectrometry (ICP OES) – Precise Quantification of Nd, Pr, Fe and B in Super-Magnets
Rodrigo Papai, Karina Torre da Fonseca, Gilmar Alves de Almeida, André Luiz Nunis da Silva, Thiago Pires Nagasima, Eduardo Gimenes Jabes, Célia Aparecida Lino dos Santos, Fernando José Gomes Landgraf, Maciel Santos Luz
Aiming at a strict chemical quality control, this work developed an analytical method to quantify the major elements in the materials involved in the production process of didymium (the mixture of neodymium and praseodymium) super-magnets. The proposed method provided high precision results, with good accuracy and fulfilled the purpose of the strict quality control of the permanent magnets materials.
The 45th Annual Meeting of the Brazilian Chemical Society had “Chemistry for Sustainable and Sovereign Development” as its theme
Held from May 31 to June 3, 2022, in Maceió, AL, Brazil, the 45th RASBQ received an audience of 1,100 people. The opening conference addressed how chemistry can contribute to the sustainable development of planet Earth....
Tackling sample preparation for elemental analysis in the lithium-ion battery industry
Joaquim A. Nóbrega, Diego Carnaroglio, Matteo Volpi, Gianpaolo Rota
This work demonstrates how the use of microwave-assisted closed vessel digestions makes feasible the metal analysis of several components used in the Li-ion battery industry. Moreover, this approach led to shorter digestion cycles, using lower volumes of reagents and higher temperatures without compromising safety aspects.
Sensitive determination of elements in lithium batteries using the Thermo Scientific iCAP PRO XP ICP
Jingfang He, Xiaobo Li, Fei Wang, Miao Jing, and Jianfeng Cui This report demonstrates a fast analytical method for the determination of major and trace elements in the ternary cathode material of lithium batteries using the Thermo Scientific™ iCAP™ PRO Series ICP OES.
Low-level consistent analysis of PBDEs in environmental and food matrices using triple quadrupole
Kjell Hope, Giulia Riccardino, Adam Ladak, and Paul Silcock
The aim of this report is to demonstrate the performance of the Thermo Scientific™ TSQ™ 9610 triple quadrupole mass spectrometer coupled to the Thermo Scientific™ TRACE™ 1610 GC for the determination of polybrominated diphenyl ethers (PBDEs) in environmental and food samples.
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