Development of a headspace-gas chromatography (HS-GC-PID-FID) method for the determination of VOCs in environmental aqueous matrices: Optimization, verification and elimination of matrix effect and VOC distribution on the Fortaleza Coast, Brazil

Cavalcante, Rivelino M.; Andrade, Márcia V.F. de; Marins, Rozane Valente; Oliveira, Lincoln D.M.

doi:10.1016/j.microc.2010.05.014

Cited by 66 publications

(24 citation statements)

References 32 publications

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“…Fortaleza is one of the most important cities in Brazil, with over 2.3 million in habitants distributed across an area of 313 km 2 in its metropolitan region. Different anthropogenic contamination sources are situated along the coastline, such as vehicular emissions (e.g., deposition of particles and gases), harbor areas, drainage from urban pluvial water system (urban runoff) and industrial wastewater, transport and refinement of oil, and sewage discharges (Cavalcante et al 2009;Cavalcante et al 2010). Considering the lack of data on the contamination of marine sediments, especially considering tropical regions, the present study aims to determine the composition, levels and sources of hydrocarbons in superficial sediments from the vicinities of Mucuripe and Pecem harbors through the analysis of LABs, AHs and PAHs, once these areas are affected by the potential sources of such compounds.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbons in surface sediments of harbor areas in a tropical region (Ceará state, northeast Brazil)

et al. 2016

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Sediment samples collected in two harbors of a tropical region of Brazil were investigated for the distribution of linear alkylbenzenes (LABs), aliphatic (AHs) and polycyclic aromatic hydrocarbons (PAHs). The levels of hydrocarbons in sediments from Mucuripe and Pecém harbors were lower than those reported in industrialized sites and threshold levels of sediment quality guidelines. Analysis of AHs revealed an input of biogenic compounds and, according to diagnostic ratios, PAHs in both harbors originated from pyrogenic sources, which can be related to harbor activities. The contribution of local and diffuse sources seemed to be less important, but not negligible. Deposition zones in both harbors are associated to sedimentation of particles, biogenic materials and hydrocarbons. The results of this study can assist in characterization and management of dredged material by providing information on the distribution and sources of hydrocarbons along the tropical zones, which is important for the identification of ecological risks associated with these compounds.

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Section: Introductionmentioning

confidence: 99%

Hydrocarbons in surface sediments of harbor areas in a tropical region (Ceará state, northeast Brazil)

et al. 2016

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“…They determined PPA, BTA, IVA, VLA, and 11 other VOCs using the thermal desorption method. Jia et al (2006) used TD-GC-MS method for airborne VOCs, while Cavalcante et al (2010) used HS-GC-PID-FID method for the VOCs in environmental aqueous matrices. Their MDL values for aromatics were about 5 to 10 times lower than our study.…”

Section: Response Factormentioning

confidence: 99%

Quantitative Approaches for the Determination of Volatile Organic Compounds (VOC) and Its Performance Assessment in Terms of Solvent Types and the Related Matrix Effects

Ullah¹,

Kim²,

Szulejko³

et al. 2017

Asian J. Atmos. Environ

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For the quantitative analysis of volatile organic compounds (VOC), the use of a proper solvent is crucial to reduce the chance of biased results or effect of interference either in direct analysis by a gas chromatograph (GC) or with thermal desorption analysis due to matrix effects, e.g., the existence of a broad solvent peak tailing that overlaps early eluters. In this work, the relative performance of different solvents has been evaluated using standards containing 19 VOCs in three different solvents (methanol, pentane, and hexane). Comparison of the response factor of the detected VOCs confirms their means for methanol and hexane higher than that of pentane by 84% and 27%, respectively. In light of the solvent vapor pressure at the initial GC column temperature (35°C), the enhanced sensitivity in methanol suggests the potential role of solvent vapor expansion in the hot injector (split ON) which leads to solvent trapping on the column. In contrast, if the recurrent relationships between homologues were evaluated using an effective carbon number (ECN) additivity approach, the comparability assessed in terms of percent difference improved on the order of methanol (26.5%), hexane (6.73%), and pentane (5.24%). As such, the relative performance of GC can be affected considerably in the direct injection-based analysis of VOC due to the selection of solvent.

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“…Moreover, in case of IR, the target component losses during volatilization were noticed. A method based on headspace chromatography together with photoionization detector and flame ionization detector (HS-GC-PID-FID) was for the first time developed for water samples in Brazil (Cavalcante, de Andrade, Marins, & Oliveira, 2010). The basic idea of this method was the rapid sampling process, plus no expensive materials or intense laboratory activity needed.…”

Section: Introductionmentioning

confidence: 99%

Real time monitoring of soil contamination with diesel fuel using photoionization detectors

Bocoş-Binţinţan

Rațiu

Al-Suod

2019

Arab Journal of Basic and Applied Sciences

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Soil contamination is a very relevant environmental problem, which is directly connected with both groundwater and air contamination. Petroleum products represent often a major source of soil contamination. In this sense, leakage of diesel fuel can cause important environmental problems due to the persistence of it in contaminated soils and to its toxicity at low concentrations. Photoionization detectors (PID) have the ability to evaluate the ampleness of contamination by detection and quantification in real time of diesel fuel vapours. Finally, this achievement can lead to a rapid evaluation (in minutes) of soil contamination and will facilitate the application of most suitable remediation technologies. The purpose of this study was to simulate an accidental spill of diesel on the ground, with the aim to monitor the degree of volatilization of chemical compounds during six weeks. Thus, the reasons behind the low volatility of diesel fuel in the investigated soil samples, based on the trend of volatilization and on soil characteristics as well. ARTICLE HISTORY

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Development of a headspace-gas chromatography (HS-GC-PID-FID) method for the determination of VOCs in environmental aqueous matrices: Optimization, verification and elimination of matrix effect and VOC distribution on the Fortaleza Coast, Brazil

Cited by 66 publications

References 32 publications

Hydrocarbons in surface sediments of harbor areas in a tropical region (Ceará state, northeast Brazil)

Hydrocarbons in surface sediments of harbor areas in a tropical region (Ceará state, northeast Brazil)

Quantitative Approaches for the Determination of Volatile Organic Compounds (VOC) and Its Performance Assessment in Terms of Solvent Types and the Related Matrix Effects

Real time monitoring of soil contamination with diesel fuel using photoionization detectors

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