FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2018251235> ?p ?o ?g. }

• W2018251235 endingPage "1464" @default.
• W2018251235 startingPage "1463" @default.
• W2018251235 abstract "It is very important to use partition coefficients of organic pollutants to predict their fate in the environment. A liquidliquid extraction technique was used to determine the partition coefficients of organic compounds between water and organic solvent. The concentration of the target compounds must be determined after equilibrium is established between the two phases. The partition coefficients can be estimated using the capacity factors of HPLC and GC. The solid phase microextraction (SPME) technique has been widely used for the analysis of volatile organic compounds (VOCs) in water and air; fragrances in perfume, food, and cosmetics; and many other emerging pollutants. In addition, the fact that SPME extraction is based on equilibrium drove scientists to develop a new approach to determine partition coefficient (Kd) values. Vaes et al. used the kinetics of partitioning to SPME fibers to estimate the Kd values for 19 organic compounds. Nardi used the “depletion technique” and a capillary tubing coated with siloxane to estimate the Kow values of BTEX. 6 The Kd values of hydrophobic compounds are generally known to have a close relationship with Kow. 7 Dean and colleagues showed a close correlation between water-fiber coefficients (Kfs) and octanol-water partition coefficients (Kow). 8 All these approaches use an absolute amount of analyte extracted from the SPME fiber. The liquid injection of a known amount of standard solution is a common technique to calibrate GC for quantitative analysis with the SPME fiber. This technique assumes that the sample transfer efficiency by the SPME fiber is the same as that of liquid injection. However, this study shows that several factors need to be considered in order to achieve higher sample transfer efficiency in the case of liquid injection, i.e., the liner, glass wool, and the temperature of the injector. The difference in sample transfer efficiency between liquid injection and the SPME fiber may result in errors in the estimation of Kfs values, i.e., Kow values. In this study, water-fiber partition coefficients (Kfs) were determined from consecutive extraction data by a SPME fiber. Instead of using the absolute mass of the analyte, the relative GC signal ratio was used to estimate the partition coefficients. An SPME fiber extracts target compounds multiple times from the same sample vial and inserts the fiber into a hot GC injector. The extracted amount on the fiber coating decreases exponentially after each extraction; Kfs of an analyte can be derived from the resulting GC responses. Theory. The following is the equation showing the relationship among the extracted amount (n, the number of moles of the analyte with an initial concentration of Co), the extraction phase volume, (Vf, typically 0.6 μL ), and the sample volume (Vs) when an SPME fiber has reached equilibrium with the analyte. Eq. (1) shows that the extracted amount is governed by the partition coefficient (Kfs) of the target analyte:" @default.
• W2018251235 created "2016-06-24" @default.
• W2018251235 creator A5029201977 @default.
• W2018251235 date "2011-05-20" @default.
• W2018251235 modified "2023-09-30" @default.
• W2018251235 title "Estimation of Partition Coefficients of Benzene, Toluene, Ethylbenzene, and p-Xylene by Consecutive Extraction with Solid Phase Microextraction" @default.
• W2018251235 cites W1972739388 @default.
• W2018251235 cites W2017178785 @default.
• W2018251235 cites W2036592078 @default.
• W2018251235 cites W2037490416 @default.
• W2018251235 cites W2046054971 @default.
• W2018251235 cites W2086050947 @default.
• W2018251235 cites W2087962864 @default.
• W2018251235 cites W2088622015 @default.
• W2018251235 cites W2103726421 @default.
• W2018251235 cites W22326529 @default.
• W2018251235 doi "https://doi.org/10.5012/bkcs.2011.32.5.1463" @default.
• W2018251235 hasPublicationYear "2011" @default.
• W2018251235 type Work @default.
• W2018251235 sameAs 2018251235 @default.
• W2018251235 citedByCount "7" @default.
• W2018251235 countsByYear W20182512352013 @default.
• W2018251235 countsByYear W20182512352015 @default.
• W2018251235 countsByYear W20182512352017 @default.
• W2018251235 countsByYear W20182512352018 @default.
• W2018251235 countsByYear W20182512352019 @default.
• W2018251235 countsByYear W20182512352021 @default.
• W2018251235 countsByYear W20182512352022 @default.
• W2018251235 crossrefType "journal-article" @default.
• W2018251235 hasAuthorship W2018251235A5029201977 @default.
• W2018251235 hasBestOaLocation W20182512351 @default.
• W2018251235 hasConcept C114614502 @default.
• W2018251235 hasConcept C162356407 @default.
• W2018251235 hasConcept C178790620 @default.
• W2018251235 hasConcept C185592680 @default.
• W2018251235 hasConcept C192552737 @default.
• W2018251235 hasConcept C205345274 @default.
• W2018251235 hasConcept C2777691172 @default.
• W2018251235 hasConcept C2778142098 @default.
• W2018251235 hasConcept C2778519274 @default.
• W2018251235 hasConcept C2778533135 @default.
• W2018251235 hasConcept C2779533485 @default.
• W2018251235 hasConcept C2779896714 @default.
• W2018251235 hasConcept C33923547 @default.
• W2018251235 hasConcept C42812 @default.
• W2018251235 hasConcept C43617362 @default.
• W2018251235 hasConcept C4725764 @default.
• W2018251235 hasConceptScore W2018251235C114614502 @default.
• W2018251235 hasConceptScore W2018251235C162356407 @default.
• W2018251235 hasConceptScore W2018251235C178790620 @default.
• W2018251235 hasConceptScore W2018251235C185592680 @default.
• W2018251235 hasConceptScore W2018251235C192552737 @default.
• W2018251235 hasConceptScore W2018251235C205345274 @default.
• W2018251235 hasConceptScore W2018251235C2777691172 @default.
• W2018251235 hasConceptScore W2018251235C2778142098 @default.
• W2018251235 hasConceptScore W2018251235C2778519274 @default.
• W2018251235 hasConceptScore W2018251235C2778533135 @default.
• W2018251235 hasConceptScore W2018251235C2779533485 @default.
• W2018251235 hasConceptScore W2018251235C2779896714 @default.
• W2018251235 hasConceptScore W2018251235C33923547 @default.
• W2018251235 hasConceptScore W2018251235C42812 @default.
• W2018251235 hasConceptScore W2018251235C43617362 @default.
• W2018251235 hasConceptScore W2018251235C4725764 @default.
• W2018251235 hasIssue "5" @default.
• W2018251235 hasLocation W20182512351 @default.
• W2018251235 hasLocation W20182512352 @default.
• W2018251235 hasOpenAccess W2018251235 @default.
• W2018251235 hasPrimaryLocation W20182512351 @default.
• W2018251235 hasRelatedWork W190259245 @default.
• W2018251235 hasRelatedWork W1927072632 @default.
• W2018251235 hasRelatedWork W1977368143 @default.
• W2018251235 hasRelatedWork W2004948594 @default.
• W2018251235 hasRelatedWork W2144687094 @default.
• W2018251235 hasRelatedWork W2351500263 @default.
• W2018251235 hasRelatedWork W2610773720 @default.
• W2018251235 hasRelatedWork W2610832748 @default.
• W2018251235 hasRelatedWork W2796005805 @default.
• W2018251235 hasRelatedWork W41930451 @default.
• W2018251235 hasVolume "32" @default.
• W2018251235 isParatext "false" @default.
• W2018251235 isRetracted "false" @default.
• W2018251235 magId "2018251235" @default.
• W2018251235 workType "article" @default.