Green sample preparation protocol for extraction of carbazoles from petroleum source rock

A new green method for extraction of carbazoles from petroleum source rocks was developed using surfactant solution. A three-level full factorial design of experiment (DoE) which involved extraction temperature, extraction time and concentration of surfactant solution led to the development of a new...

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Main Authors: Akinsehinwa Akinlua, Kai Mangelsdorf
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S240584402501480X
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author Akinsehinwa Akinlua
Kai Mangelsdorf
author_facet Akinsehinwa Akinlua
Kai Mangelsdorf
author_sort Akinsehinwa Akinlua
collection DOAJ
description A new green method for extraction of carbazoles from petroleum source rocks was developed using surfactant solution. A three-level full factorial design of experiment (DoE) which involved extraction temperature, extraction time and concentration of surfactant solution led to the development of a new extraction method avoiding organic solvents. All carbazoles extraction experiments were carried out with the assistance of a microwave oven. The carbazoles in the surfactant extracts were determined by high performance liquid chromatography-mass spectrometry (HPLC-MS). The results showed that temperature, time and concentration of surfactant solution have significant influence on the extraction yields of the carbazoles. The highest extraction yields for most of the carbazoles were obtained at the optimal conditions of extraction temperature of 110 °C, extraction time of 25 min and surfactant concentration of 0.02 M. In comparison with a fast organic solvent-based extraction method (accelerated solvent extraction, ASE) the microwave assisted surfactant extraction (MASE) method was more efficient with a very good reproducibility.
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spelling doaj-art-6d7c7f191d9542d2909d64e3097043722025-08-20T03:19:56ZengElsevierHeliyon2405-84402025-05-011110e4309910.1016/j.heliyon.2025.e43099Green sample preparation protocol for extraction of carbazoles from petroleum source rockAkinsehinwa Akinlua0Kai Mangelsdorf1Fossil Fuels and Environmental Geochemistry Group, Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria; Corresponding author.Organic Geochemistry Section, Helmholtz Centre Potsdam (GFZ) German Research Centre for Geosciences, Potsdam, GermanyA new green method for extraction of carbazoles from petroleum source rocks was developed using surfactant solution. A three-level full factorial design of experiment (DoE) which involved extraction temperature, extraction time and concentration of surfactant solution led to the development of a new extraction method avoiding organic solvents. All carbazoles extraction experiments were carried out with the assistance of a microwave oven. The carbazoles in the surfactant extracts were determined by high performance liquid chromatography-mass spectrometry (HPLC-MS). The results showed that temperature, time and concentration of surfactant solution have significant influence on the extraction yields of the carbazoles. The highest extraction yields for most of the carbazoles were obtained at the optimal conditions of extraction temperature of 110 °C, extraction time of 25 min and surfactant concentration of 0.02 M. In comparison with a fast organic solvent-based extraction method (accelerated solvent extraction, ASE) the microwave assisted surfactant extraction (MASE) method was more efficient with a very good reproducibility.http://www.sciencedirect.com/science/article/pii/S240584402501480XCarbazolesSurfactantSource rockGreen solventExtractionMASE
spellingShingle Akinsehinwa Akinlua
Kai Mangelsdorf
Green sample preparation protocol for extraction of carbazoles from petroleum source rock
Heliyon
Carbazoles
Surfactant
Source rock
Green solvent
Extraction
MASE
title Green sample preparation protocol for extraction of carbazoles from petroleum source rock
title_full Green sample preparation protocol for extraction of carbazoles from petroleum source rock
title_fullStr Green sample preparation protocol for extraction of carbazoles from petroleum source rock
title_full_unstemmed Green sample preparation protocol for extraction of carbazoles from petroleum source rock
title_short Green sample preparation protocol for extraction of carbazoles from petroleum source rock
title_sort green sample preparation protocol for extraction of carbazoles from petroleum source rock
topic Carbazoles
Surfactant
Source rock
Green solvent
Extraction
MASE
url http://www.sciencedirect.com/science/article/pii/S240584402501480X
work_keys_str_mv AT akinsehinwaakinlua greensamplepreparationprotocolforextractionofcarbazolesfrompetroleumsourcerock
AT kaimangelsdorf greensamplepreparationprotocolforextractionofcarbazolesfrompetroleumsourcerock