Quality management system for application of the analytical quality assurance cycle in a research project R S Camargo, I R B Olivares Journal of Physics Conference Series, 2016 The lack of quality assurance and quality control in academic activities have been recognized by the inability to demonstrate reproducibility. This paper aim to apply a quality tool called Analytical Quality Assurance Cycle on a specific research project, supported by a Verification Programme of equipment and an adapted Quality Management System based on international standards, to provide traceability to the data generated.
Estimate of the uncertainty in measurement for the determination of mercury in seafood by TDA AAS Daiane Placido Torres, Igor R.B. Olivares, Helena Müller Queiroz Journal of Environmental Science and Health Part B Pesticides Food Contaminants and Agricultural Wastes, 2015 An approach for the estimate of the uncertainty in measurement considering the individual sources related to the different steps of the method under evaluation as well as the uncertainties estimated from the validation data for the determination of mercury in seafood by using thermal decomposition/amalgamation atomic absorption spectrometry (TDA AAS) is proposed. The considered method has been fully optimized and validated in an official laboratory of the Ministry of Agriculture, Livestock and Food Supply of Brazil, in order to comply with national and international food regulations and quality assurance. The referred method has been accredited under the ISO/IEC 17025 norm since 2010. The approach of the present work in order to reach the aim of estimating of the uncertainty in measurement was based on six sources of uncertainty for mercury determination in seafood by TDA AAS, following the validation process, which were: Linear least square regression, Repeatability, Intermediate precision, Correction factor of the analytical curve, Sample mass, and Standard reference solution. Those that most influenced the uncertainty in measurement were sample weight, repeatability, intermediate precision and calibration curve. The obtained result for the estimate of uncertainty in measurement in the present work reached a value of 13.39%, which complies with the European Regulation EC 836/2011. This figure represents a very realistic estimate of the routine conditions, since it fairly encompasses the dispersion obtained from the value attributed to the sample and the value measured by the laboratory analysts. From this outcome, it is possible to infer that the validation data (based on calibration curve, recovery and precision), together with the variation on sample mass, can offer a proper estimate of uncertainty in measurement.
Utilização de jogos de empresa para realização de auditoria simulada na disciplina de Boas Práticas de Laboratório-BPL CS Lima, IRB Olivares Resumos , 2026 2026
Metrological tools for quality control in distilled beverages with a focus on the development of reference materials and proficiency tests RM Bontempi, BD Ferreira, C de Sousa Lima, IRB Olivares Accreditation and Quality Assurance 30 (4), 477-483 , 2025 2025 Citations: 2
Is everything wrong in analytical chemistry? A study on reproducibility BD Ferreira, IRB Olivares, E Carrilho, VHP Pacces Accreditation and Quality Assurance 30 (4), 361-366 , 2025 2025 Citations: 2
Ferramentas de metrologia melhoram análise de cachaça e vodca em laboratórios IRB Olivares, RM Bontempi Jornal da USP , 2025 2025
WebQuest: aplicação no aprendizado de gestão da qualidade para o curso de Bacharelado em Química KD Galera, VHP Pacces, IRB Olivares Química Nova na Escola , 2025 2025
Complementações como ferramenta construtivista de aulas práticas TE Gallina, IRB Olivares Resumos , 2025 2025
Desenvolvimento e aplicação de WebQuest na disciplina" 7500078-Sistema NBR ISO/IEC 17025" KD Galera, IRB Olivares Resumos , 2024 2024
Grupo cria protocolo para padronizar exames moleculares usados no diagnóstico da COVID-19 [Depoimento a Cristiane Paião] IRB Olivares, D Reischak Agência FAPESP , 2024 2024
Development and application of proficiency testing (PT) to evaluate the diagnostic capacity of SARS-CoV-2 by RT-qPCR-A practical and metrological approach C de Oliveira Rodrigues, IRB Olivares, D Reischak, MB Catozzi, ... Diagnostic Microbiology and Infectious Disease 107 (2), 116021 , 2023 2023 Citations: 1
Application of Quality Statistical Tools for the Evaluation of Diagnostic Tests for SARS-CoV-2 Detection C de Oliveira Rodrigues, IRB Olivares COVID-19 Metabolomics and Diagnosis: Chemical Science for Prevention and … , 2023 2023
Ferramenta auxilia na confiabilidade do diagnóstico de covid IRB Olivares, GTNP Lima Jornal da USP , 2023 2023
Características do estudo de linearidade relacionados à incerteza de medição em química analítica BDF Gonçalves, VHP Pacces, IRB Olivares, E Carrilho Anais , 2023 2023
Application of Quality Statistical Tools for the Evaluation of Diagnostic Tests for SARS-CoV-2 Detection CO Rodrigues, IRB Olivares COVID-19 Metabolomics and Diagnosis, 194 , 2023 2023 Citations: 1
Trends in the development of proficiency testing for chemical analysis: focus on food and environmental matrices IRB Olivares, GB De Souza, AR de Araujo Nogueira, VHP Pacces, ... Accreditation and Quality Assurance 27 (2), 55-83 , 2022 2022 Citations: 11
Educação ambiental com Programa Município VerdeAzul MOO Rezende, MD Landgraf, LG Borges, LAO Rossi, L Figueiredo, ... Trabalhos online , 2021 2021
Study of reproducibility in scientific publications based on the statistical evaluation of validation results and uncertainty estimation in analytical chemistry. B Ferreira, V Pacces, I Olivares, E Carrilho Book of Abstracts , 2021 2021
Assessment of the application of quality management systems requirements related to computer systems in laboratories by assessors and their application by accredited laboratories CW Kock, VHP Pacces, IRB Olivares Book of Abstracts , 2021 2021
Metrological tools applied in test methods for the detection of SARS-CoV-2 CO Rodrigues, IRB Olivares Book of Abstracts, 40 , 2021 2021
Application of statistical tools for laboratory quality management aiming the ethyl carbamate (EC) monitoring in unsweetened cachaça PA Grizotto, IRB Olivares Book of Abstracts, 42 , 2021 2021
Gestão de Qualidade em Laboratórios 4a edição (revisada e ampliada) IRB Olivares 2019 Citations: 3
MOST CITED SCHOLAR PUBLICATIONS
Recent developments and applications of stir bar sorptive extraction FM Lancas, MEC Queiroz, P Grossi, IRB Olivares Journal of Separation Science 32 (5‐6), 813-824 , 2009 2009 Citations: 197
Trends in developments of certified reference materials for chemical analysis-focus on food, water, soil, and sediment matrices IRB Olivares, GB Souza, ARA Nogueira, GTK Toledo, DC Marcki TrAC Trends in analytical chemistry 100, 53-64 , 2018 2018 Citations: 86
Gestão de qualidade em laboratórios IRB Olivares 2015 Citations: 56
Essential steps to providing reliable results using the Analytical Quality Assurance Cycle IRB Olivares, FA Lopes TrAC Trends in Analytical Chemistry 35, 109-121 , 2012 2012 Citations: 56
A novel HS‐SBSE system coupled with gas chromatography and mass spectrometry for the analysis of organochlorine pesticides in water samples P Grossi, IRB Olivares, DR de Freitas, FM Lancas Journal of separation science 31 (20), 3630-3637 , 2008 2008 Citations: 39
Application of indicators and quality index as a tool for critical analysis and continuous improvement of laboratories accredited against ISO/IEC 17025 RH Catini, FJP de Souza, MF Martins Pinhel, A de Oliveira Mendonça, ... Accreditation and Quality Assurance 20 (5), 431-436 , 2015 2015 Citations: 22
Jogos de Empresa: aplicação à gestão da qualidade no Ensino Superior de Química IRB Olivares, DLLB Costa, SL Queiroz Química Nova 34 (10), 1811-1817 , 2011 2011 Citations: 19
Development, validation and application of a method to analyze phenols in water samples by solid phase micro extraction-gas chromatography-flame ionization detector FM Lanças, IRB Olivares, PM Alves Journal of Environmental Science and Health, Part B 42 (5), 491-498 , 2007 2007 Citations: 14
Estimate of the uncertainty in measurement for the determination of mercury in seafood by TDA AAS DP Torres, IRB Olivares, HM Queiroz Journal of Environmental Science and Health, Part B 50 (8), 622-631 , 2015 2015 Citations: 13
Trends in the development of proficiency testing for chemical analysis: focus on food and environmental matrices IRB Olivares, GB De Souza, AR de Araujo Nogueira, VHP Pacces, ... Accreditation and Quality Assurance 27 (2), 55-83 , 2022 2022 Citations: 11
Emissões antrópicas de mercúrio para a atmosfera na Região de Paulínia (SP) IRB Olivares [sn] , 2003 2003 Citations: 9
Refrigerated sorptive extraction: determination of BTEX in water samples JD Carmi, I Olivares, P Grossi, FM Lancas Journal of chromatographic science 47 (9), 812-816 , 2009 2009 Citations: 5
Gestão de Qualidade em Laboratórios 4a edição (revisada e ampliada) IRB Olivares 2019 Citations: 3
Controle de qualidade para espectroscopia no infravermelho próximo. GB de SOUZA, ARA NOGUEIRA, IRB Olivares 2018 Citations: 3
Metrological tools for quality control in distilled beverages with a focus on the development of reference materials and proficiency tests RM Bontempi, BD Ferreira, C de Sousa Lima, IRB Olivares Accreditation and Quality Assurance 30 (4), 477-483 , 2025 2025 Citations: 2
Is everything wrong in analytical chemistry? A study on reproducibility BD Ferreira, IRB Olivares, E Carrilho, VHP Pacces Accreditation and Quality Assurance 30 (4), 361-366 , 2025 2025 Citations: 2
Quality management system for application of the analytical quality assurance cycle in a research project RS Camargo, IRB Olivares Journal of Physics: Conference Series 733 (1), 012046 , 2016 2016 Citations: 2
Development of a rapid and sensitive routine method of analyses for organochlorine compounds in fish: A metrological approach IRB Olivares, SP Costa, RS Camargo, VHP Pacces Pharmaceutica Analytica Acta 7 (8) , 2016 2016 Citations: 2
Desenvolvimento, otimização e validação da técnica HS-SPME-GC/MS para análise de amostras obtidas do Rio Atibaia através da aplicação de uma sistemática ISO para diagnóstico … IRB Olivares Universidade de São Paulo , 2006 2006 Citations: 2
Development and application of proficiency testing (PT) to evaluate the diagnostic capacity of SARS-CoV-2 by RT-qPCR-A practical and metrological approach C de Oliveira Rodrigues, IRB Olivares, D Reischak, MB Catozzi, ... Diagnostic Microbiology and Infectious Disease 107 (2), 116021 , 2023 2023 Citations: 1