Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386787943> ?p ?o ?g. }
Showing items 1 to 45 of
45
with 100 items per page.
- W4386787943 abstract "Phenolic compounds are important chemicals and are applied in many fields. Moreover, they are found as contaminants in the environment. This research aimed to improve the chromatographic analysis of phenolic compounds and was divided into two parts. The first part focused on improving the separation of a mixture containing eighteen phenols using gas chromatography with derivatized cyclodextrin stationary phases. Results showed that all three cyclodextrin-based stationary phases, with different ring sizes, improved the separation of the mixture in comparison to polysiloxane OV-1701 stationary phase. The best separation was obtained from the small-size alpha-cyclodextrin with a capillary column of 15-meter long and a temperature program from 130 to 220 ?C. Complete separation of all 18 phenols was obtained in 9.4 minutes. Some incomplete separations were observed when beta- and gamma-cyclodextrin stationary phases were used. The second part investigated optimum�conditions for bisphenol A analysis using TLC combined with MALDI-TOF MS. These conditions included the use of graphene as a matrix, laser concentrations of 50% nitrogen, and a graphene-to-analyte ratio of 1:1. To validate the quantitative method, a suitable concentration range for BPA analysis using TLC combined with MALDI-TOF MS was determined to be 80 to 160 mM (or 18.3 to 36.5�?g), with an acceptable linear regression value (R2 = 0.9634)." @default.
- W4386787943 created "2023-09-16" @default.
- W4386787943 creator A5092882847 @default.
- W4386787943 date "2023-09-15" @default.
- W4386787943 modified "2023-09-26" @default.
- W4386787943 title "Improving chromatographic analysis of phenolic compounds" @default.
- W4386787943 doi "https://doi.org/10.58837/chula.the.2022.282" @default.
- W4386787943 hasPublicationYear "2023" @default.
- W4386787943 type Work @default.
- W4386787943 citedByCount "0" @default.
- W4386787943 crossrefType "dissertation" @default.
- W4386787943 hasAuthorship W4386787943A5092882847 @default.
- W4386787943 hasBestOaLocation W43867879431 @default.
- W4386787943 hasConcept C10390740 @default.
- W4386787943 hasConcept C106487976 @default.
- W4386787943 hasConcept C113196181 @default.
- W4386787943 hasConcept C178790620 @default.
- W4386787943 hasConcept C185592680 @default.
- W4386787943 hasConcept C2777728882 @default.
- W4386787943 hasConcept C2779433975 @default.
- W4386787943 hasConcept C43617362 @default.
- W4386787943 hasConceptScore W4386787943C10390740 @default.
- W4386787943 hasConceptScore W4386787943C106487976 @default.
- W4386787943 hasConceptScore W4386787943C113196181 @default.
- W4386787943 hasConceptScore W4386787943C178790620 @default.
- W4386787943 hasConceptScore W4386787943C185592680 @default.
- W4386787943 hasConceptScore W4386787943C2777728882 @default.
- W4386787943 hasConceptScore W4386787943C2779433975 @default.
- W4386787943 hasConceptScore W4386787943C43617362 @default.
- W4386787943 hasLocation W43867879431 @default.
- W4386787943 hasOpenAccess W4386787943 @default.
- W4386787943 hasPrimaryLocation W43867879431 @default.
- W4386787943 hasRelatedWork W1986991025 @default.
- W4386787943 hasRelatedWork W2005319188 @default.
- W4386787943 hasRelatedWork W2029661591 @default.
- W4386787943 hasRelatedWork W2040818997 @default.
- W4386787943 hasRelatedWork W2052029677 @default.
- W4386787943 hasRelatedWork W2093320553 @default.
- W4386787943 hasRelatedWork W2160566707 @default.
- W4386787943 hasRelatedWork W2320312871 @default.
- W4386787943 hasRelatedWork W2320691067 @default.
- W4386787943 hasRelatedWork W3098984799 @default.
- W4386787943 isParatext "false" @default.
- W4386787943 isRetracted "false" @default.
- W4386787943 workType "dissertation" @default.