Application of portable gas chromatography–mass spectrometer for rapid field based determination of TCE in soil vapour and groundwater

Wang, Liang; Cheng, Ying; Naidu, Ravi; Chadalavada, Sreenivasulu; Bekele, Dawit; Gell, Peter; Donaghey, Mark; Bowman, Mark

doi:10.1016/j.eti.2020.101274

Cited by 14 publications

(15 citation statements)

References 18 publications

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“…In a prior paper (Wang et al, 2021), the self-developed SVSP was introduced with results that it worked faultlessly when installed in a pre-drilled borehole and back-filled with bentonite and soil to isolate the sampling point from. The SVSP comprises a 100 mm long and 80 mm diameter stainless steel cylindrical vapour chamber coupled to a non-absorbent Teflon sampling tube, 6 mm inner diameter, that connects the vapour chamber to the ground level, from which samples can be gathered.…”

Section: Svsp Installationmentioning

confidence: 99%

“…For the in-field VOC measurements, a Torion T-9 Portable GC/ MS was employed (Wang et al, 2021). A 5 m length and 0.18 mm inner diameter MXT-5 stainless steel column, inner coating with 0.4 µm thickness diphenyl dimethylpolysiloxane, is used in the portable GC/MS.…”

Section: Portable Gas Chromatography -Mass Spectrometermentioning

confidence: 99%

“…Extraction duration, temperature, and solvent have been investigated as causal factors that affect the extraction efficiency of SPME in laboratory benchtop experiments (Zhao et al, 2011;Zhang and Harrington, 2015;Jia et al, 2000). Based on our investigation, an infield soil gas sample preparation method was introduced in our previous study (Wang et al, 2021). Soil vapour samples were obtained using 1 L Tedlar sample bags.…”

Section: Portable Gas Chromatography -Mass Spectrometermentioning

confidence: 99%

“…In our prior study (Wang et al, 2021), an easy-to-install and retractable soil vapour sampling probe (SVSP) was introduced to rapidly sample soil vapour (Ayolabi et al, 2013). After being installed in a pre-drilled borehole and sealed with bentonite, it was found to work satisfactorily for soil vapour samples collecting from a range of soil depths.…”

Section: Introductionmentioning

confidence: 99%

“…The analysis of VOCs and SVOCs in indoor and outdoor air samples has been extensively used by portable GC/MS in a variety of applications (Shakoor et al, 1997;Barnes et al, 2004;Fair et al, 2010;Gorder and Dettenmaier, 2011;Hopler, 2012;Leary et al, 2016) and the instrument can approach detection limits that satisfy criteria required by environmental protection authorities (EPA). With the fast infield sample preparation and pre-concentration processes, such as employing the solid-phase micro-extraction (SPME) approach to sample conditioning, studies have demonstrated that the portable GC/MS instrument is reliable for rapid in-field quantitative analysis of VOCs for contaminated site vapour intrusion assessment (Hook et al, 2002;Wang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Rapid In-Field Approaches for Delineating VOC in Both Soil Vapour and Groundwater for Vapour Intrusion Assessment

Wang

Cheng

Naidu

et al. 2021

Front. Environ. Sci.

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Traditional contaminated site characterisation approaches are time-consuming, labour-intensive, and demand a high level of expertise. This case study provides a rapid field-based solution to investigating a VOC contaminated site and its vapour incursion by combining soil vapour and groundwater survey. To fully assess the volatile organic compound (VOC) distribution in a contaminated site, a number of self-developed soil vapour sampling probes (SVSPs) were placed vertically at different locations in a grid with different depths. Hence, 3D subsurface contour maps for VOC concentrations in soil vapour can be obtained and used to help identify hot spots and the migration patterns of VOCs. This SVSP is “easy-to-install” in the field and a cost-effective solution for rapid assessment of soil vapour samples. The SVSPs can be installed both vertically and horizontally. If there is a requirement to take soil vapour samples beneath an existing building from a potential contamination source zone, SVSPs can be horizontally installed beneath the building without compromising its structural integrity. In addition, to ascertain the correct groundwater channels that are likely to carry contaminants from a potential source zone, an electrical resistivity tomography technique was employed to provide the preliminary information for groundwater delineation in a complex groundwater channel network.

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Section: Svsp Installationmentioning

confidence: 99%

Section: Portable Gas Chromatography -Mass Spectrometermentioning

confidence: 99%

Section: Portable Gas Chromatography -Mass Spectrometermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Rapid In-Field Approaches for Delineating VOC in Both Soil Vapour and Groundwater for Vapour Intrusion Assessment

Wang

Cheng

Naidu

et al. 2021

Front. Environ. Sci.

Self Cite

View full text Add to dashboard Cite

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Portable gas chromatography–mass spectrometry method for the in-field screening of organic pollutants in soil and water at pollution incidents

Duff,

Lennard,

et al. 2023

Environ Sci Pollut Res

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Environmental pollution incidents generate an emergency response from regulatory agencies to ensure that the impact on the environment is minimised. Knowing what pollutants are present provides important intelligence to assist in determining how to respond to the incident. However, responders are limited in their in-field capabilities to identify the pollutants present. This research has developed an in-field, qualitative analytical approach to detect and identify organic pollutants that are commonly detected by regulatory environmental laboratories. A rapid, in-field extraction method was used for water and soil matrices. A coiled microextraction (CME) device was utilised for the introduction of the extracted samples into a portable gas chromatography–mass spectrometry (GC–MS) for analysis. The total combined extraction and analysis time was approximately 6.5 min per sample. Results demonstrated that the in-field extraction and analysis methods can screen for fifty-nine target organic contaminants, including polyaromatic hydrocarbons, monoaromatic hydrocarbons, phenols, phthalates, organophosphorus pesticides, and organochlorine pesticides. The method was also capable of tentatively identifying unknown compounds using library searches, significantly expanding the scope of the methods for the provision of intelligence at pollution incidents of an unknown nature, although a laboratory-based method was able to provide more information due to the higher sensitivity achievable. The methods were evaluated using authentic casework samples and were found to be fit-for-purpose for providing rapid in-field intelligence at pollution incidents. The fact that the in-field methods target the same compounds as the laboratory-based methods provides the added benefit that the in-field results can assist in sample triaging upon submission to the laboratory for quantitation and confirmatory analysis.

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Analytical methods for the analysis of bromoform in red seaweed Asparagopsis armata and Asparagopsis taxiformis – A review

Hutchings,

Grebneva,

Dilmetz

et al. 2024

Algal Research

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Application of portable gas chromatography–mass spectrometer for rapid field based determination of TCE in soil vapour and groundwater

Cited by 14 publications

References 18 publications

Rapid In-Field Approaches for Delineating VOC in Both Soil Vapour and Groundwater for Vapour Intrusion Assessment

Rapid In-Field Approaches for Delineating VOC in Both Soil Vapour and Groundwater for Vapour Intrusion Assessment

Portable gas chromatography–mass spectrometry method for the in-field screening of organic pollutants in soil and water at pollution incidents

Analytical methods for the analysis of bromoform in red seaweed Asparagopsis armata and Asparagopsis taxiformis – A review

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