Development of a gas chromatography — mass spectrometry method for the determination of carbon disulfide in the atmosphere

Abstract

ElsevierBorrás García, EM.; Ródenas, M.; Dieguez, J.; Pérez-García, M.; Lomba, R.; Lavin, J.; Tortajada-Genaro, LA. (2012). Development of a gas chromatography -mass spectrometry method for the determination of carbon disulfide in the atmosphere. Carbon disulfide (CS2), a relevant reduced sulfur compound in air, is well-known for its 28 malodor and its significant effect on global atmospheric chemistry. Therefore, a reliable 29 method for determining CS2 in atmospheric samples has been developed based on 30 solid-phase sampling and gas chromatography -mass spectrometry (GC-MS). Two 31 types of solid-phase sampling supports (Orbo-32 and SKC) and the elution with organic 32 solvents -hexane and toluene -were evaluated for low-volume outdoor sampling. 33Recovery studies and the standard addition method were carried out to demonstrate 34 the proper determination of CS2 in the absence of the influence of interferences such as 35 ozone, hydrogen sulfide or water -important atmospheric pollutants -. The proposed 36 methodology was validated by performing experiments in a high-volume smog 37 chamber and by comparison with two reference optical methods, Fourier Transform 38 Infrared (FTIR) and Differential Optical Absorption Spectroscopy (DOAS). Satisfactory 39 analytical parameters were reported: fast analysis, a correct repeatability of 6 ± 1 % 40 and reproducibility of 14 ± 3 %, and low detection limits of 0.3 -0.9 pg m -3

Comparison of the volatile organic compound recovery rates of commercial active samplers for evaluation of indoor air quality in work environments

“…However, to date, few studies have investigated the effects of these characteristics on accuracy. Borrás et al ( 2012 ) investigated optimization of an active sampler/extraction solvent combination using ORBO-32 activated coconut charcoal (Sigma-Aldrich, St. Louis, MO) and Anasorb CSC coconut charcoal (SKC Ltd., Eighty Four, PA) as the active samplers and hexane and toluene as the extraction solvents. Carbon disulfide in the gas phase was measured to determine the recovery rate, repeatability, reproducibility, and detection limit.…”

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

“…Therefore, these results emphasize the need of methods that allow intensive sampling campaigns for these malodor sources compared to other industrial emissions, e.g. pulp industry [18].…”

“…DB-1) or long columns composed by 185 diphenyl dimethyl polysiloxane [5,15]. In the present research, the selected column was 5MS column with a length of 30 m, based on the better results obtained in our previous study for the single detection of CS2 [18]. This column showed a very low bleed and excellent inertness for active compounds, present in gaseous samples.…”

“…In a recent research, we have determined CS2 in air samples from pulp industry with excellent performances [18]. The goal of the present study was to extend this innovative approach by developing of a fast, sensitive, reproducible and efficient fingerprint method, improving the current state of the art.…”

Headspace solid-phase microextraction for the determination of volatile sulfur compounds in odorous hyper-eutrophic freshwater lakes using gas chromatography with flame photometric detection

“…SPME is a recently developed solvent-free enrichment method that combines the sampling and preconcentration of analytes in a single step using a liquid polymeric coating fiber to extract analytes from a variety of both liquid and solid matrices. SPME has also been applied to the analysis of air samples via the extraction of sulfur compounds from air collected in containers or sampling bags [25,26] or extraction in the field [27][28][29]. The fiber is then directly transferred into the injector of a GC system for thermal desorption and analysis.…”