A5013029750- Radioactive contamination and transfer
- Nuclear Physics and Applications
- Radioactive element chemistry and processing
- Mass Spectrometry Techniques and Applications
- Radioactivity and Radon Measurements
- Heavy Metals in Plants
- Analytical chemistry methods development
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Nuclear materials and radiation effects
- Mercury impact and mitigation studies
- Nuclear Materials and Properties
- Nuclear and radioactivity studies
- Geochemistry and Geologic Mapping
- Astrophysics and Cosmic Phenomena
- Integrated Circuits and Semiconductor Failure Analysis
- Ion-surface interactions and analysis
- Pesticide Residue Analysis and Safety
- Dye analysis and toxicity
- Advanced Chemical Sensor Technologies
- Spectroscopy and Chemometric Analyses
- Meat and Animal Product Quality
- Heavy metals in environment
University of Ottawa
2016-2022
National Research Council Canada
2016
Universidade Federal Fluminense
2010-2015
The present work proposes a method for the direct determination of Al, Cu, Cr, Fe and Ni in Brazilian carbonated soft drinks by electrothermal atomic absorption spectrometry (ETAAS). Samples different flavors packed containers made materials (polyterephthalate ethylene glass bottles, aluminum steel cans) were analyzed. was optimized building up pyrolysis atomization curves sample medium evaluating calibration approach. Under conditions, recoveries range 92–104% obtained evaluation accuracy....
Photochemical vapor generation of inorganic Hg is proposed for its determination in high-salinity production water obtained from offshore petroleum exploration.
This present work reports a multivariate optimization of spectrophotometric method for copper determination in sugar-cane spirits, exploring the reaction Cu(II) with phenylfluorone (PF) presence cetylpyridinium chloride (CPC) and Triton X-100. The strategy was based on application two-level full factorial design screening significant variables followed by Doehlert to determine optimum conditions. highest sensitivity achieved when pH 8.0 PF TX-100 concentrations were 6.2 × 10− 5 1.0 2 mol L−...
Radioactive contamination of the Pacific Ocean following Fukushima nuclear accident has raised public concern about seafood safety, particularly in coastal Indigenous communities. To address this, Health Canada and partners have collected analyzed a total 621 samples commonly consumed salmon, ground fish, shellfish from Canadian west coast 2011 to 2018. While vast majority 137Cs 134Cs levels were below Minimum Detectable Concentration (MDC, typically 0.7-1.0 Bq kg-1 fw for 6 h counting),...
In this study, data from thirteen laboratories around the world are presented for a successful certification of uranium isotope ratios in ore concentrate (UOC) certified reference materials National Research Council Canada. Different mass spectrometric measurement principles (including SF‐ICP‐MS, quadruple ICP‐MS, TIMS, MC‐ICP‐MS, SIMS and AMS) procedures were employed. general, all sources exhibit good consistency with TIMS MC‐ICP‐MS showing superior performance. The three candidate UOC...