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Machine for measuring trace gases in atmospheres indoor and outdoor

Grant number: 18/15018-6
Support Opportunities:Research Grants - Innovative Research in Small Business - PIPE
Duration: April 01, 2019 - December 31, 2019
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Juliano Passaretti Filho
Grantee:Juliano Passaretti Filho
Host Company:Micro Tube Ferramentaria de Precisão e Comércio Ltda. - ME
CNAE: Atividades profissionais, científicas e técnicas não especificadas anteriormente
Atividades de apoio à gestão de saúde
City: Araraquara
Associated researchers:Arnaldo Alves Cardoso
Associated scholarship(s):19/09440-0 - Machine for measuring trace gases in atmospheres indoor and outdoor, BP.PIPE


The determination of pollutant gases in situ is a challenge to analytical chemistry. This is because there is not always a power point available for analytical equipment installations or even to preserve collected samples. One possible solution is the development of miniaturized equipment for the sampling and determination steps and that can work with a miniaturized equipment composed of a single battery-operated sampler and analyzer. Among the gases that need to be monitored are the NOX, which consists of the sum of the concentrations of nitrogen dioxide and nitrogen monoxide (NO2 + NO), which has high potential as an environmental pollutant, since they are involved in different chemical processes that occur in the atmosphere. As a reaction product, the formation of ozone, acid rain and secondary aerosols may occur. Anthropogenic activities are the main sources of this compound for atmosphere. Determining this compound in the air is important to recognize impacts from sources and to follow effects of possible control measures. This project aims to assemble an equipment that is easy to operate, that works with batteries and uses a minimum volume of reagents. The equipment must present determination responses within the current legislation for the analyzed gas. The basic design of the equipment and the validation of the data obtained were previous results of the FAPESP project (15 / 23265-5). It is intended in this step to re-adjust the initial assembly into a close design of a product. (AU)

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