The elimination and extraction of organosulfur compounds from real water and soil samples using metal organic framework/graphene oxide as a novel and efficient nanocomposite

Abdulaziz Ibrahim Almohana; Sattam Fahad Almojil; Abdulrhman Fahmi Alali; Khaled Twfiq Almoalimi

doi:10.1016/j.chemosphere.2023.137950

The elimination and extraction of organosulfur compounds from real water and soil samples using metal organic framework/graphene oxide as a novel and efficient nanocomposite

Chemosphere. 2023 Apr:319:137950. doi: 10.1016/j.chemosphere.2023.137950. Epub 2023 Jan 23.

Authors

Abdulaziz Ibrahim Almohana¹, Sattam Fahad Almojil², Abdulrhman Fahmi Alali¹, Khaled Twfiq Almoalimi¹

Affiliations

¹ Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia.
² Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia. Electronic address: salmojil@ksu.edu.sa.

PMID: 36702420
DOI: 10.1016/j.chemosphere.2023.137950

Abstract

In the present work, an efficient metal organic framework/graphene oxide (MOF-801/GO) sorbent was fabricated and employed for the detection of organosulfur pesticides (OSPs) in real samples using gas chromatography-flame photometric detection (GC-FPD). The optimal extraction parameters for the suggested solid-phase extraction (SPE) include sorbent amount (60 mg), extraction solvent (acetonitrile) and extraction time (5 min). The linear dynamic ranges and detection limits for organosulfur pesticides (OSPs) samples under above extraction conditions were ranged from 0.5 to 300 μg L^-1 and 0.1-1.1 μg L^-1, respectively. Moreover, the proposed SPE/GC-FDP method was applied for the analysis of pesticides in different real environmental water and soil samples. The obtained recoveries of the analytes in were between 92.0 and 106.8% and relative standard deviation (RSD) values were lower than 9.2%. The application of the MOF-801/GO as a sorbent in dSPE of OSPs analytes showed to be reliable, fast and sensible methodology for pesticides monitoring in different environmental samples.

Keywords: Environmental matrices; Gas chromatography; Pesticides; Solid-phase extraction.

MeSH terms

Limit of Detection
Metal-Organic Frameworks*
Nanocomposites*
Pesticides* / analysis
Soil
Solid Phase Extraction / methods
Sulfur Compounds
Water / analysis

Substances

Water
graphene oxide
Metal-Organic Frameworks
Pesticides
Sulfur Compounds
Soil