Qualitative Analytical Chemistry
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. UMA PROPOSTA PARA O ENSINO DE LABORATÓRIO DE QUÍMICA ANALÍTICA QUALITATIVA
Teaching laboratory of qualitative analytical chemistry is still a controversial issue in chemistry courses. However, important researchers and educators in chemistry recognized and highlighted the importance that the contents of this discipline represent in the formation of chemists, once it can provide handling and understanding of microscopic phenomena ba
Quím. Nova. Publicado em: 2021-04
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2. LASER INDUCED-BREAKDOWN SPECTROSCOPY (LIBS): HISTÓRICO, FUNDAMENTOS, APLICAÇÕES E POTENCIALIDADES
This review attempts to present a broad view of the technique laser-induced breakdown spectroscopy (LIBS), since its origin, fundamentals, sample preparation strategies, use of chemometric tools for data processing, the advantages and limitations with regard to qualitative and quantitative analysis, aplications and future trends as an analytical technique th
Quím. Nova. Publicado em: 18/07/2019
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3. QUÍMICA ANALÍTICA NO BRASIL: ATUALIDADES, TENDÊNCIAS E DESAFIOS
This work describes the development of Analytical Chemistry in Brazil from the Brazilian Chemical Society (SBQ) foundation to the present days. Important historical facts were highlighted and data on the human resources formation, financial investments and scientific production were used to evaluate and contextualize the progress achieved. The evolution of t
Quím. Nova. Publicado em: 2017-07
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4. AVALIAÇÃO DO USO DE PLANILHAS COMPUTACIONAIS COMO UMA FERRAMENTA DIDÁTICA EM QUÍMICA ANALÍTICA QUALITATIVA
The use of spreadsheet softwares is not widespread in Chemical Education in Brazil as a computational education tool. By its turn the Qualitative Analytical Chemistry is considered a discipline with classical and non-flexible content. Thus in this work the spreadsheet software Excel® was evaluated as a teaching tool in a Qualitative Analytical Chemistry cou
Quím. Nova. Publicado em: 2016-04
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5. PERFIL DOS BOLSISTAS DE PRODUTIVIDADE EM PESQUISA NAS SUBÁREAS DA QUÍMICA DO CNPq
The profile analysis of CNPq Research Productivity Fellows (PQ) in the four subfields of chemistry and in their respective specialties highlighted particularities with regard to the indicators related to the judging criteria established by the Chemistry Advisory Committee. The curricula of all 727 PQ fellows with active grants in 15/03/2013 were analyzed spa
Quím. Nova. Publicado em: 2016-04
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6. TREATMENT OF WASTE FROM ATOMIC EMISSION SPECTROMETRIC TECHNIQUES AND REUSE IN UNDERGRADUATE LAB CLASSES FOR QUALITATIVE ANALYSIS
Flame atomic absorption spectrometry (FAAS) and inductively coupled plasma optical emission spectrometry (ICP OES) are widely used in academic institutions and laboratories for quality control to analyze inorganic elements in samples. However, these techniques have been observed to underperform in sample nebulization processes. Most of the samples processed
Quím. Nova. Publicado em: 2015-11
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7. A formação do pensamento reversível no ensino de Química Analítica Qualitativa / The reversible thought formation process for Qualitative Analytical Chemistry
Nesta pesquisa investigamos em um grupo de estudantes do curso de Química a construção do raciocínio através da argumentação dos alunos, suas estruturas cognitivas e articulações na resolução de problemas de uma atividade prática de Química Analítica Qualitativa, mais especificamente pesquisa de cátions e ânions numa marcha analítica. Após
Publicado em: 2009
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8. Uma proposta para o ensino da Química Analítica Qualitativa
In recent years, because of the need for a more flexible curriculum established by the Curriculum Guidelines of the National Brazilian Education (law 9394/96), the pedagogical project of the Chemistry course of FFCLRP/USP has undergone alterations, amongst them the gradual reduction of the hours devoted to the discipline Qualitative Analytical Chemistry. In
Química Nova. Publicado em: 2006-12
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9. A importância da Química Analítica Qualitativa nos cursos de Química das instituições de ensino superior brasileiras
The results of a survey of institutions offering undergraduate studies, with the objective of evaluating the importance of Qualitative Analytical Chemistry for Chemistry courses in Brazil, are presented and discussed. Judging by the data, the content of the course of Qualitative Analytical Chemistry is considered by the Brazilian institutions offering underg
Química Nova. Publicado em: 2006-02
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10. Uma interpretação microscopica para a analise sistematica de cations / A microscopical interpretation for systematic cations analysis
The systematic cations analysis is a common practice in analytical chemistry laboratory for undergraduate students and also at the industry, for identification of different kinds of unknown samples. This practice is a result of a vast knowledge in chemistry acumulated during decades by researchers and cientists who knew the reactivity of several classes of o
Publicado em: 2006
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11. Perspectives for teaching qualitative analytical chemistry / Perspectivas para o ensino da quimica analitica qualitativa
No meio acadêmico brasileiro convive-se com opiniões favoráveis e contrárias à manutenção da Química Analítica Qualitativa clássica nos currículos dos cursos superiores de Química, mas nenhuma posição é claramente assumida por qualquer grupo de pesquisadores ou de professores. Para se ter uma idéia concreta da situação, fez-se uma ampla con
Publicado em: 2005
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12. Recomendações para calibração em química analítica: parte I. Fundamentos e calibração com um componente (calibração univariada)
This paper is a translation from IUPAC nomenclature document by K. Danzer and L. A. Currie (Pure Appl. Chem., 1998, 70(4), 993-1014). Its goal is to establish an uniform and meaningful approach to terminology (in Portuguese), notation, and formulation for calibation in analytical chemistry. In this first part, general fundamentals of calibration are presente
Química Nova. Publicado em: 2002-09