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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c03676
|2 doi
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|a eng
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| 100 |
1 |
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|a Denis, Elizabeth H
|e verfasserin
|4 aut
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| 245 |
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|a Physicochemical Gas-Solid Sorption Properties of Geologic Materials Using Inverse Gas Chromatography
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|c 2021
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Revised 15.06.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The goal of this study was to determine the physicochemical properties of a variety of geologic materials using inverse gas chromatography (IGC) by varying probe gas selection, temperature, carrier gas flow rate, and humidity. This is accomplished by measuring the level of interaction between the materials of interest and known probe gases. Identifying a material's physicochemical characteristics can help provide a better understanding of the transport of gaseous compounds in different geologic materials or between different geological layers under various conditions. Our research focused on measuring the enthalpy (heat) of adsorption, Henry's constant, and diffusion coefficients of a suite of geologic materials, including two soil types (sandy clay-loam and loam), quartz sand, salt, and bentonite clay, with various particle sizes. The reproducibility of IGC measurements for geologic materials, which are inherently heterogeneous, was also assessed in comparison to the reproducibility for more homogeneous synthetic materials. This involved determining the variability of physicochemical measurements obtained from different IGC approaches, instruments, and researchers. For the investigated IGC-determined parameters, the need for standardization became apparent, including the need for application-relevant reference materials. The inherent physical and chemical heterogeneities of soil and many geologic materials can make the prediction of sorption properties difficult. Characterizing the properties of individual organic and inorganic components can help elucidate the primary factors influencing sorption interactions in more complex mixtures. This research examined the capabilities and potential challenges of characterizing the gas sorption properties of geologic materials using IGC
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|a Journal Article
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|a Fraga, Carlos G
|e verfasserin
|4 aut
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| 700 |
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|a Huggett, Nicholas L
|e verfasserin
|4 aut
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| 700 |
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|a Weaver, William C
|e verfasserin
|4 aut
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| 700 |
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|a Rush, Lydia A
|e verfasserin
|4 aut
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| 700 |
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|a Dockendorff, Brian P
|e verfasserin
|4 aut
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| 700 |
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|a Breton-Vega, Angel S
|e verfasserin
|4 aut
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| 700 |
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|a Carman, April J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 37(2021), 23 vom: 15. Juni, Seite 6887-6897
|w (DE-627)NLM098181009
|x 1520-5827
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|g volume:37
|g year:2021
|g number:23
|g day:15
|g month:06
|g pages:6887-6897
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|u http://dx.doi.org/10.1021/acs.langmuir.0c03676
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