CHED 243 |
| Inorganic salts such as NaNO3 have long been used as void volume markers in reversed-phase liquid chromatography. The exclusion of the anions from the stationary phase pores in unbuffered mobile phases has been well documented and is commonly referred to as Donnan exclusion, or electrostatic exclusion. In this study, inorganic salts have been used to explore interesting properties of the porous stationary phases, including mobile phase broadening effects and the apparent existence in some columns of secondary pore networks. |
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Undergraduate Research Poster Session: Analytical Chemistry
11:00 AM-1:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |