Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography
Organic contamination has been less investigated in Antarctic snow and ice than in other matrices due to analytical operational problems. In this study, the concentration of 14 Polycyclic Aromatic Hydrocarbons was determined in a shallow firn core by Homogeneous Liquid-Liquid Extraction and High–Per...
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ftunivfrgs:oai:www.lume.ufrgs.br:10183/246968 2023-09-05T13:15:22+02:00 Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography Cerón Neculpan, Masiel Susana Simões, Jefferson Cardia Carlos, Franciéle Schwanck Lascani Monsalve, Jorge Andrés 2022 application/pdf http://hdl.handle.net/10183/246968 eng eng Anais da Academia Brasileira de Ciências. Rio de Janeiro. Vol. 94, supl. 1 (2022), e20210628, 16 p. 0001-3765 http://hdl.handle.net/10183/246968 001143876 Open Access HLLE-HPLC-FLD Ice core PAH Testemunhos de gelo Hidrocarbonetos Glaciologia : Antártica Artigo de periódico Nacional 2022 ftunivfrgs 2023-08-19T23:16:04Z Organic contamination has been less investigated in Antarctic snow and ice than in other matrices due to analytical operational problems. In this study, the concentration of 14 Polycyclic Aromatic Hydrocarbons was determined in a shallow firn core by Homogeneous Liquid-Liquid Extraction and High–Performance Liquid Chromatography with a Fluorescence Detector. This investigation aimed to develop a simple analytical methodology for future application directly in fieldwork, taking advantage of the simplicity and small sample volumes. The analyte recoveries were 71–99% considering a 100 ng L⁻¹ initial concentration of each compound, with a relative standard deviation of 1.1–9.9%. Analytical sensitivity/ detection limit/ quantification limits varied from 7.8/ 20.3/ 67.6 ng L⁻¹ for fluoranthene to 0.6/ 1.5/ 5.1 ng L⁻¹ for anthracene. These analytical parameters allow us to apply the method to real samples. We found visible differences at various firn core depths when considering the sum of total analytes under study. The highest total concentration was 741 ng L-1 and the lowest one 134.9 ng L-1. The methodology can be applied without mixing samples with adequate analytical parameters, and it can preserve the firn core temporal resolution, which is an advantage for application in fieldwork. Article in Journal/Newspaper Antarc* Antarctic Antártica ice core Universidade Federal do Rio Grande do Sul (UFRGS): Lume Antarctic |
institution |
Open Polar |
collection |
Universidade Federal do Rio Grande do Sul (UFRGS): Lume |
op_collection_id |
ftunivfrgs |
language |
English |
topic |
HLLE-HPLC-FLD Ice core PAH Testemunhos de gelo Hidrocarbonetos Glaciologia : Antártica |
spellingShingle |
HLLE-HPLC-FLD Ice core PAH Testemunhos de gelo Hidrocarbonetos Glaciologia : Antártica Cerón Neculpan, Masiel Susana Simões, Jefferson Cardia Carlos, Franciéle Schwanck Lascani Monsalve, Jorge Andrés Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
topic_facet |
HLLE-HPLC-FLD Ice core PAH Testemunhos de gelo Hidrocarbonetos Glaciologia : Antártica |
description |
Organic contamination has been less investigated in Antarctic snow and ice than in other matrices due to analytical operational problems. In this study, the concentration of 14 Polycyclic Aromatic Hydrocarbons was determined in a shallow firn core by Homogeneous Liquid-Liquid Extraction and High–Performance Liquid Chromatography with a Fluorescence Detector. This investigation aimed to develop a simple analytical methodology for future application directly in fieldwork, taking advantage of the simplicity and small sample volumes. The analyte recoveries were 71–99% considering a 100 ng L⁻¹ initial concentration of each compound, with a relative standard deviation of 1.1–9.9%. Analytical sensitivity/ detection limit/ quantification limits varied from 7.8/ 20.3/ 67.6 ng L⁻¹ for fluoranthene to 0.6/ 1.5/ 5.1 ng L⁻¹ for anthracene. These analytical parameters allow us to apply the method to real samples. We found visible differences at various firn core depths when considering the sum of total analytes under study. The highest total concentration was 741 ng L-1 and the lowest one 134.9 ng L-1. The methodology can be applied without mixing samples with adequate analytical parameters, and it can preserve the firn core temporal resolution, which is an advantage for application in fieldwork. |
format |
Article in Journal/Newspaper |
author |
Cerón Neculpan, Masiel Susana Simões, Jefferson Cardia Carlos, Franciéle Schwanck Lascani Monsalve, Jorge Andrés |
author_facet |
Cerón Neculpan, Masiel Susana Simões, Jefferson Cardia Carlos, Franciéle Schwanck Lascani Monsalve, Jorge Andrés |
author_sort |
Cerón Neculpan, Masiel Susana |
title |
Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
title_short |
Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
title_full |
Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
title_fullStr |
Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
title_full_unstemmed |
Polycyclic aromatic hydrocarbons in Antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
title_sort |
polycyclic aromatic hydrocarbons in antarctic ice core : prior study by homogeneous liquid-liquid extraction and high-performance liquid chromatography |
publishDate |
2022 |
url |
http://hdl.handle.net/10183/246968 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antártica ice core |
genre_facet |
Antarc* Antarctic Antártica ice core |
op_relation |
Anais da Academia Brasileira de Ciências. Rio de Janeiro. Vol. 94, supl. 1 (2022), e20210628, 16 p. 0001-3765 http://hdl.handle.net/10183/246968 001143876 |
op_rights |
Open Access |
_version_ |
1776197173850931200 |