Alexandre Barreto Costa
Biographic Data
| ID | 5152558 |
|---|---|
| NAME | Alexandre Barreto Costa |
| GIVEN NAMES | Alexandre Barreto |
| FAMILY NAME | Costa |
| SIGNATURE | COSTA A B |
| AFFILIATIONS | Universidade Federal da Bahia |
| ORCID | 0000-0003-3406-8444 |
| VERIFIED | Yes |
| TOTAL WORKS | 4 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 4 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2025 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Tracing oil spill contamination in coastal and estuarine ecosystems using δ 13 C and Δ 14 C isotopes
Oil contamination in estuarine and coastal ecosystems presents major challenges for environmental monitoring due to the complex mixture of organic matter from biogenic and petrogenic sources. This review synthesizes recent advances and limitations in the combined use of carbon isotopes δ 1 3 C and Δ 14 C to trace petroleum contamination in marine sediments. Sixteen empirical studies were analyzed to evaluate the effectiveness of this dual-isotope…
Tracing oil spill contamination in coastal and estuarine ecosystems using δ13C and Δ14C isotopes
Radiocarbon analysis of mixed-sources plastic
In Brazil, laws are being adopted prohibiting the use and distribution of non-recyclable plastic bags and encouraging the use of recyclable, biodegradable and bioplastic bags. However, there is no specific standard method in Brazil to inspect the carbon content of bioplastics. This work aims to implement the sample preparation for radiocarbon biogenic fraction determination in bioplastics in the new radiocarbon laboratory at the Federal Universit…
Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and intercomparison of preliminary results with Sample Preparation Laboratory (Lapa 14 C – Ufba)
This study presents the initial results of carbon-14 dating after performing sample preparation and graphite production processes at the Federal University of Bahia (UFBA) in an intercomparison with the same processes performed at the Radiocarbon Laboratory of the Fluminense Federal University (LAC-UFF). Both laboratories are located in Brazil. The accelerator mass spectrometry (AMS) system at LAC-UFF was used for radiocarbon measurements. To ver…
Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and intercomparison of preliminary results with Sample Preparation Laboratory (Lapa 14 C – Ufba)
This study presents the initial results of carbon-14 dating after performing sample preparation and graphite production processes at the Federal University of Bahia (UFBA) in an intercomparison with the same processes performed at the Radiocarbon Laboratory of the Fluminense Federal University (LAC-UFF). Both laboratories are located in Brazil. The accelerator mass spectrometry (AMS) system at LAC-UFF was used for radiocarbon measurements. To ver…
Brazilian AMS Radiocarbon Laboratory (LAC-UFF) and intercomparison of preliminary results with Sample Preparation Laboratory (Lapa 14 C – Ufba)
This study presents the initial results of carbon-14 dating after performing sample preparation and graphite production processes at the Federal University of Bahia (UFBA) in an intercomparison with the same processes performed at the Radiocarbon Laboratory of the Fluminense Federal University (LAC-UFF). Both laboratories are located in Brazil. The accelerator mass spectrometry (AMS) system at LAC-UFF was used for radiocarbon measurements. To ver…
Tracing oil spill contamination in coastal and estuarine ecosystems using δ 13 C and Δ 14 C isotopes
Oil contamination in estuarine and coastal ecosystems presents major challenges for environmental monitoring due to the complex mixture of organic matter from biogenic and petrogenic sources. This review synthesizes recent advances and limitations in the combined use of carbon isotopes δ 1 3 C and Δ 14 C to trace petroleum contamination in marine sediments. Sixteen empirical studies were analyzed to evaluate the effectiveness of this dual-isotope…
Tracing oil spill contamination in coastal and estuarine ecosystems using δ13C and Δ14C isotopes
Radiocarbon analysis of mixed-sources plastic
In Brazil, laws are being adopted prohibiting the use and distribution of non-recyclable plastic bags and encouraging the use of recyclable, biodegradable and bioplastic bags. However, there is no specific standard method in Brazil to inspect the carbon content of bioplastics. This work aims to implement the sample preparation for radiocarbon biogenic fraction determination in bioplastics in the new radiocarbon laboratory at the Federal Universit…
Isotope Analysis in Ecology (4 works) · Archaeology and ancient environmental studies (2 works) · Contamination (2 works) · Ecosystem (2 works) · Estuary (2 works) · Marine and coastal ecosystems (2 works) · Radiocarbon dating (2 works) · Tracing (2 works) · Addendum (1 work) · Bioplastic (1 work)