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. Author manuscript; available in PMC: 2011 Nov 16.
Published in final edited form as: J Chromatogr A. 2007 Dec 7;1182(1):41–55. doi: 10.1016/j.chroma.2007.11.104

Table 2.

The Cation Exchange Capacity of the Various −SO3-HC-C8 Phases

Stationary Phases Gradient
Washing		 Void Volume
(mL)		 Total Amount of K+ Eluted from
Column (µmols)		 Cation Exchange Capacity
(µmols/m2)b
−SO3-HC-C8-Ha No 0.491 41.89 0.44
−SO3-HC-C8-La No 0.464 9.86 0.08
−SO3-HC-C8-La Yes 0.476 11.99 0.11
a

Phase designation is the same as in Table 1

b

The cation exchange capacity was calculated based on Eq. (1) assuming that each column was packed with 0.5g of particles