Opening book details…
Can I read The Opposite Effect of Temperature on Polyethylene Glycol-based Aqueous Biphasic Systems Versus Aqueous Biphasic Extraction Chromatographic Resins on EtoBox?
The Opposite Effect of Temperature on Polyethylene Glycol-based Aqueous Biphasic Systems Versus Aqueous Biphasic Extraction Chromatographic Resins by Scott T. Griffin; Meghna Dilip; Scott K. Spear; Jonathan G. Huddleston; Robin D. Rogers is a Chemistry article available to read on EtoBox.
What is The Opposite Effect of Temperature on Polyethylene Glycol-based Aqueous Biphasic Systems Versus Aqueous Biphasic Extraction Chromatographic Resins about?
Variation in operational temperatures has revealed differences in the partitioning behavior of probe solutes between the phases in aqueous biphasic systems (ABS) and the related aqueous biphasic extraction chromatographic resin (ABEC). This difference has been studied using the hydrophobic anion, 99 TcO 4 -, as a probe and (NH 4 ) 2 SO 4 as the kosmotropic salt. Distribution of the hydrophobic anion 99 TcO 4 -to the PEG-rich phase in a MePEG-5000/(NH 4 ) 2 SO 4 ABS increases with increasing temperature, but decreases are observed in batch uptakes of this anion to ABEC resins from (NH 4 ) 2 SO 4 solutions. Phase diagrams were constructed at five different temperatures from 10 to 50 • C using cloud point titration for the ABS and a correlation between the phase divergence, measured in terms of tie line length (TLL), and the temperature of the partitioning system was verified. Thermodynamic parameters ( H • , S • , G • , C • p ) as a function of temperature were calculated for the various systems studied and the results imply thermodynamic differences between partitioning in ABS versus ABEC.
Who reads The Opposite Effect of Temperature on Polyethylene Glycol-based Aqueous Biphasic Systems Versus Aqueous Biphasic Extraction Chromatographic Resins?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Scott T. Griffin; Meghna Dilip; Scott K. Spear; Jonathan G. Huddleston; Robin D. Rogers
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-376X)
- Published
- 2006
- Language
- EN
- Field
- Chemistry (Physical Sciences)