Determination of reduced sulfur compounds in air samples for the monitoring of malodor caused by landfills

A reliable method for determining malodorous reduced sulfur compounds (RSC) in atmospheric samples has been developed. The method uses an activated coconut solid-phase sorbent for active sampling, hexane as desorption solvent, and gas chromatography–mass spectrometry (GC–MS) technique for specific a...

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Published in:Talanta (Oxford) 2016-02, Vol.148, p.472-477
Main Authors: Borrás, Esther, Tortajada-Genaro, Luis Antonio, Muñoz, Amalia
Format: Article
Language:English
Subjects:
Air - analysis
Air Pollutants - analysis
Environmental Monitoring - methods
Gas chromatography–mass spectrometry
Malodor compounds
Particulate Matter - analysis
Reduced sulfur compounds
Solid-phase sampling
Sulfur Compounds
Waste Disposal Facilities
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description A reliable method for determining malodorous reduced sulfur compounds (RSC) in atmospheric samples has been developed. The method uses an activated coconut solid-phase sorbent for active sampling, hexane as desorption solvent, and gas chromatography–mass spectrometry (GC–MS) technique for specific and sensitive separation-detection. The compounds analyzed were hydrogen sulfide, ethyl mercaptan, dimethyl sulfide, carbon disulfide, butyl mercaptan and dimethyl disulfide. Recovery efficiency varied between 75% and 97% and no detectable losses were observed during storage at −20°C. Satisfactory analytical parameters were reported, such as good linearity (r2>0.98), low detection limits (0.6–59pgm−3), adequate repeatability (9%) and reproducibility (17%), and fast GC–MS analysis (
doi_str_mv 10.1016/j.talanta.2015.11.021
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The results indicated that hydrogen sulfide and ethyl mercaptan were the main molecules responsible of malodor phenomenon in the study areas. 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subjects Air - analysis
Air Pollutants - analysis
Environmental Monitoring - methods
Gas chromatography–mass spectrometry
Malodor compounds
Particulate Matter - analysis
Reduced sulfur compounds
Solid-phase sampling
Sulfur Compounds
Waste Disposal Facilities
title Determination of reduced sulfur compounds in air samples for the monitoring of malodor caused by landfills
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