Henry’s Law Constant Variations of Volatile Organic Compounds in Wastewater and Activated Sludge

Lin, Jixing; Chou, Ming-Shean

doi:10.4209/aaqr.2006.06.0006

Cited by 13 publications

(4 citation statements)

References 26 publications

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“…In order for correct assessment of VOCs released from blood plasma with the described method, the samples should be analyzed as soon as possible after collection, and kept in appropriate frozen conditions before analysis. Moreover, taking into account that the solubility of VOCs depends on the sample temperature [ 34 ], and their concentrations extracted from fresh samples can differ from those frozen and thawed before analysis, we did not analyze fresh samples, but all samples were analyzed and compared after first thawing, i.e. , after the absolutely same processing history.…”

Section: Resultsmentioning

confidence: 99%

TD-GC-MS Investigation of the VOCs Released from Blood Plasma of Dogs with Cancer

et al. 2013

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An analytical TD-GC-MS method was developed and used for the assessment of volatile organic compounds (VOCs) released from the blood plasma of dogs with/without cancer. VOCs released from 40 samples of diseased blood and 10 control samples were compared in order to examine the difference between both sample groups that were showing qualitatively similar results independent from the disease’s presence. However, mild disturbances in the spectra of dogs with cancer in comparison with the control group were observed, and six peaks (tentatively identified by comparison with mass spectral library as hexanal, octanal, toluene, 2-butanone, 1-octen-3-ol and pyrrole) revealed statistically significant differences between both sample groups, thereby suggesting that these compounds are potential biomarkers that can be used for cancer diagnosis based on the blood plasma TD-GC-MS analysis. Statistical comparison with the application of principal component analysis (PCA) provided accurate discrimination between the cancer and control groups, thus demonstrating stronger biochemical perturbations in blood plasma when cancer is present.

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Section: Resultsmentioning

confidence: 99%

TD-GC-MS Investigation of the VOCs Released from Blood Plasma of Dogs with Cancer

et al. 2013

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“…EM measurements are sensitive to buried conductors such as metallic pipes, electric lines, sanitary sewers, etc. These are usu- the physical phenomenon of hydrocarbon volatilisation given by the Henry law (Lin and Chou 2006) and on the characteristics of the site. It has been demonstrated that the analysis of gases or vapours is a good screening technique in hydrocarbon-contaminated sites with groundwater table depths between 2 and 10 m, and it facilitates the selection of the sites at which drilling and soil sampling will be performed (API 1991).…”

Section: The Electromagnetic Profiling Methodsmentioning

confidence: 99%

Mapping of hydrocarbon‐ and scrap‐metal‐contaminated soil using volatile organic compounds and electromagnetic profiling methods

Delgado‐Rodríguez

2017

Near Surface Geophysics

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The electromagnetic profiling method detects lateral changes in soil conductivity up to a certain depth. Volatile organic compounds are most commonly found in sites contaminated by hydrocarbons. This work presents the results of the application of electromagnetic profiling and volatile organic compound methods for detecting hydrocarbon and buried scrap metal contamination zones at a 48-ha site that was used as an industrial waste dump for many years. Potentially contaminated zones were configured based on a joint analysis of low resistivity anomalies (mature pollution) and high concentrations of volatile organic compounds, which reduced the amount of soil sampling through optimal location of the drilling points. Chemical analysis in 54 soil samples showed the presence of three hydrocarbon-contaminated zones that produced total petroleum hydrocarbon values higher than 10,000 ppm. Buried scrap metal was detected by anomalous in-phase measurements obtained by an electromagnetic profiling survey, facilitating future removal works.

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“…[365][366][367][368][369][370][371][372][373][374][375][376][377][378][379][380] With increasing concern for the environmental dynamics of natural and anthropogenic substances, for their biological impact in general and on human health (environmental risk assessment) in particular, physicochemical/thermodynamic work on dilute aqueous solutions has increased significantly. New instruments have been developed [381][382][383][384][385][386][387] and relevant data compilations have become available. [365][366][367][368][369][370][371][372][373]380 in this introductory chapter, i have not covered any experimental details -the reader is referred to the relevant chapters of this book and to the pertinent review articles and monographs cited as references.…”

Section: Concluding Remarks Future Directions and Acknowledgementsmentioning

confidence: 99%

Gibbs Energy and Helmholtz Energy

2021

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Tyger, Tyger, burning bright, In the forests of the night What immortal hand or eye, Could frame thy fearful symmetry? William Blake (london, 28 November 1757-12 august 1827) the poem The Tyger (six stanzas in length, each stanza four lines long) was published in 1794 as part of Blake's illuminated book Songs of Experience (a sequel to Songs of Innocence, published in 1789). reproduced from Songs of Experience, quotation in the public domain.

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Henry’s Law Constant Variations of Volatile Organic Compounds in Wastewater and Activated Sludge

Cited by 13 publications

References 26 publications

TD-GC-MS Investigation of the VOCs Released from Blood Plasma of Dogs with Cancer

TD-GC-MS Investigation of the VOCs Released from Blood Plasma of Dogs with Cancer

Mapping of hydrocarbon‐ and scrap‐metal‐contaminated soil using volatile organic compounds and electromagnetic profiling methods

Gibbs Energy and Helmholtz Energy

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