FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4385567637> ?p ?o ?g. }

• W4385567637 endingPage "341686" @default.
• W4385567637 startingPage "341686" @default.
• W4385567637 abstract "A novel pH switchable water stationary phase is presented for use in supercritical fluid chromatography (SFC). By adding NH4OH to the water coating and system hydration, changes in CO2 pressure and temperature allow a wide range of stationary phase pH conditions (∼3–9) to be achieved, which impact analyte retention properties. For example, 100 atm and 50 °C produces an acidic water stationary phase (pH near 4.0) where octanoic acid readily elutes while the base caffeine does not. Conversely, at 80 atm and 120 °C a basic water stationary phase (pH near 8.0) is obtained and the opposite occurs. Further, under constant pressure and temperature conditions, simply adding or removing NH4OH from the system is also found to readily allow switching between the basic and acidic water stationary phase modes and demonstrates control over ionizable analyte elution. For instance, hexanoic acid elution is near 40 times more delayed on a basic water stationary phase and, as such, it can be eluted at later points in time as desired by removing the NH4OH and switching to an acidic stationary phase. Experiments indicate that stationary phase pH switching occurs uniformly across the 15 m column length within about 18 s and that analyte retention times are very reproducible upon performing a switch (1.4% RSD; n = 3). Results demonstrate the selectivity factor between acidic and neutral analytes can be reversed and increased about 35 times, while in other trials resolution also similarly increased near 40-fold. By rapidly switching the stationary phase pH back and forth between acidic and basic modes, the selectivity between ionizable analytes could also be increased as desired. Various applications with the system show that it can vastly increase the separation between target analytes and matrix components as required by the dynamics of a particular separation." @default.
• W4385567637 created "2023-08-05" @default.
• W4385567637 creator A5007289411 @default.
• W4385567637 creator A5060965074 @default.
• W4385567637 date "2023-10-01" @default.
• W4385567637 modified "2023-09-25" @default.
• W4385567637 title "A novel switchable water stationary phase for supercritical fluid chromatography" @default.
• W4385567637 cites W1966144393 @default.
• W4385567637 cites W1980121371 @default.
• W4385567637 cites W1985390618 @default.
• W4385567637 cites W1987388801 @default.
• W4385567637 cites W1995037484 @default.
• W4385567637 cites W2011455766 @default.
• W4385567637 cites W2013430500 @default.
• W4385567637 cites W2015109781 @default.
• W4385567637 cites W2020636547 @default.
• W4385567637 cites W2040075537 @default.
• W4385567637 cites W2070092337 @default.
• W4385567637 cites W2079457673 @default.
• W4385567637 cites W2084125980 @default.
• W4385567637 cites W2085383389 @default.
• W4385567637 cites W2091919503 @default.
• W4385567637 cites W2129751060 @default.
• W4385567637 cites W2151497900 @default.
• W4385567637 cites W2170880874 @default.
• W4385567637 cites W2255529199 @default.
• W4385567637 cites W2273060211 @default.
• W4385567637 cites W2330504324 @default.
• W4385567637 cites W2528272556 @default.
• W4385567637 cites W2756181452 @default.
• W4385567637 cites W2904599458 @default.
• W4385567637 cites W2906793873 @default.
• W4385567637 cites W3047124970 @default.
• W4385567637 cites W3116841073 @default.
• W4385567637 cites W4281755311 @default.
• W4385567637 cites W4303629007 @default.
• W4385567637 doi "https://doi.org/10.1016/j.aca.2023.341686" @default.
• W4385567637 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37709440" @default.
• W4385567637 hasPublicationYear "2023" @default.
• W4385567637 type Work @default.
• W4385567637 citedByCount "0" @default.
• W4385567637 crossrefType "journal-article" @default.
• W4385567637 hasAuthorship W4385567637A5007289411 @default.
• W4385567637 hasAuthorship W4385567637A5060965074 @default.
• W4385567637 hasConcept C10390740 @default.
• W4385567637 hasConcept C113196181 @default.
• W4385567637 hasConcept C115900902 @default.
• W4385567637 hasConcept C118419359 @default.
• W4385567637 hasConcept C178790620 @default.
• W4385567637 hasConcept C185592680 @default.
• W4385567637 hasConcept C2778471300 @default.
• W4385567637 hasConcept C2983406500 @default.
• W4385567637 hasConcept C43617362 @default.
• W4385567637 hasConcept C44280652 @default.
• W4385567637 hasConcept C73826308 @default.
• W4385567637 hasConceptScore W4385567637C10390740 @default.
• W4385567637 hasConceptScore W4385567637C113196181 @default.
• W4385567637 hasConceptScore W4385567637C115900902 @default.
• W4385567637 hasConceptScore W4385567637C118419359 @default.
• W4385567637 hasConceptScore W4385567637C178790620 @default.
• W4385567637 hasConceptScore W4385567637C185592680 @default.
• W4385567637 hasConceptScore W4385567637C2778471300 @default.
• W4385567637 hasConceptScore W4385567637C2983406500 @default.
• W4385567637 hasConceptScore W4385567637C43617362 @default.
• W4385567637 hasConceptScore W4385567637C44280652 @default.
• W4385567637 hasConceptScore W4385567637C73826308 @default.
• W4385567637 hasFunder F4320334593 @default.
• W4385567637 hasLocation W43855676371 @default.
• W4385567637 hasLocation W43855676372 @default.
• W4385567637 hasOpenAccess W4385567637 @default.
• W4385567637 hasPrimaryLocation W43855676371 @default.
• W4385567637 hasRelatedWork W1497652288 @default.
• W4385567637 hasRelatedWork W2002142670 @default.
• W4385567637 hasRelatedWork W2012750720 @default.
• W4385567637 hasRelatedWork W2017495715 @default.
• W4385567637 hasRelatedWork W2023467853 @default.
• W4385567637 hasRelatedWork W2047684119 @default.
• W4385567637 hasRelatedWork W2085201619 @default.
• W4385567637 hasRelatedWork W2252716694 @default.
• W4385567637 hasRelatedWork W2946273783 @default.
• W4385567637 hasRelatedWork W4385567637 @default.
• W4385567637 hasVolume "1278" @default.
• W4385567637 isParatext "false" @default.
• W4385567637 isRetracted "false" @default.
• W4385567637 workType "article" @default.