Banca de QUALIFICAÇÃO: ARTEJOSE REVOREDO DA SILVA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : ARTEJOSE REVOREDO DA SILVA
DATE: 20/11/2023
TIME: 09:00
LOCAL: Remota (Google Meet)
TITLE:

Electrochemical determination of Zinc and Cadmium using a homemade graphite electrode modified with cork


KEY WORDS:

Cork, electrochemical sensor, heavy metals, environmental monitoring


PAGES: 61
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUMMARY:
In recent years, the development of industries has grown a lot with population expansion and consequently a global concern about environmental pollution, mainly due to chemical elements that can be identified as major dangerous pollutants. Among these chemical elements we can highlight the heavy metals zinc (Zn) and cadmium (Cd), these have received a certain amount of attention due to the significant increase in activities. In human health and in some animals, the presence of a certain amount of zinc and cadmium, even in low concentrations, can cause a certain concern. One of the concerns is the effluents generated by the oil industry, where we have a large presence of organic and inorganic substances and with a very varied composition of these substances that can generate a major environmental problem. These heavy metals have received a certain amount of attention due to the impacts they can generate on terrestrial and aquatic ecosystems, where they have received regulations established by the National Environmental Council (CONAMA) in Brazil to mitigate these impacts and assign minimum and maximum quantities in certain effluents and consequently minimize and control their contamination. This thesis aimed to investigate the use of graphite/cork electrodes with 50% cork to quantify zinc and cadmium in real samples of tap water, produced water and catchment pond water, with a detection limit of ??? and dilution ratio of 11 in acetate buffer, where the results obtained clearly demonstrated that the application of this electrode proved to be quite efficient in detecting Zn2+ and Cd2+ metals.


COMMITTEE MEMBERS:
Presidente - 2275848 - ELISAMA VIEIRA DOS SANTOS
Interno - 1645110 - CARLOS ALBERTO MARTINEZ HUITLE
Externo à Instituição - JOSÉ EUDES LIMA SANTOS - UFRN
Externa à Instituição - JUSSARA CÂMARA CARDOZO - UFRN
Notícia cadastrada em: 16/11/2023 13:05
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