José Marques Lopes
Biographic Data
| ID | 5152557 |
|---|---|
| NAME | José Marques Lopes |
| GIVEN NAMES | José Marques |
| FAMILY NAME | Lopes |
| SIGNATURE | LOPES J M |
| AFFILIATIONS | Universidade Federal da Bahia, R. Barão de Jeremoabo s/n |
| VERIFIED | No |
| TOTAL WORKS | 2 |
| TOTAL CITATIONS | 1 |
| WORKS AS AUTHOR | 2 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2025 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
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…
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…
Archaeology and ancient environmental studies (2 works) · Isotope Analysis in Ecology (2 works) · Radiocarbon dating (2 works) · Bioplastic (1 work) · Carbon fibers (1 work) · Chemistry (1 work) · Elemental analysis (1 work) · Fraction (chemistry (1 work) · Geochemistry (1 work) · Geology (1 work)