Actions for Reverse phase ion-pairing chromatography at pressures up to 345 MPa [electronic resource].

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Reverse phase ion-pairing chromatography at pressures up to 345 MPa [electronic resource].

Published
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1977.
Physical Description
Pages: 34 : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The effects of pressure up to 345 MPa (50,000 psi) on a reverse phase ion-pairing system were studied in 50% methanol-water. Retention increased by a factor of 3.2 for methyl orange when the pressure was increased to 241 MPa (30,000 psi) and still larger (not measurable) at 345 MPa (50,000 psi). The retention of methyl red was increased by a factor of 2.2 by pressures of 241 MPa (30,000 psi) and by a factor of 2.5 by 345 MPa (50,000 psi). When the methanol concentration was increased to 75%, retention of methyl orange increased by a factor of 2.6 between 68.9 MPa (10,000 psi) and 345 MPa (50,000 psi). Other variables studied were concentration of counter ion and temperature. For methyl orange, retention decreased with pH, whereas for methyl red it increased. The effect of tetrahexylammonium ion concentration of retention was linear in the working range 0.5 mM to 2.0 mM. All samples eluted faster with increased temperature.
Report Numbers
E 1.99:sro-854-14
sro-854-14
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Other Subject(s)
Note
Published through SciTech Connect.
05/01/1977.
"sro-854-14"
Prukop, G.; Rogers, L. G.
Georgia Univ., Athens (USA). Dept. of Chemistry
Funding Information
EY-76-S-09-0854
View MARC record | catkey: 14397827