TY - JOUR TI - Expanding the elution by characteristic point method for determination of various types of adsorption isotherms AU - Samuelsson, Jörgen AU - Undin, Torgny AU - Fornstedt, Torgny T2 - Journal of Chromatography A AB - Important improvements have recently been made on the elution by characteristic point (ECP) method to increase the accuracy of the determined adsorption isotherms. However, the method has so far been limited/used for only type I adsorption isotherms (e.g. Langmuir, Tóth, bi-Langmuir). In this study, general strategies are developed to expand the ECP method for the determination of more complex adsorption isotherms including such containing inflection points. We will exemplify the methodology with type II, type III and type V isotherms. Guidelines are given for how to determine such isotherms using the ECP method and for the experimental considerations that must be taken into account or that may be eliminated in the particular case. DA - 2011/06/17/ PY - 2011 DO - 10.1016/j.chroma.2011.04.035 DP - ScienceDirect VL - 1218 IS - 24 SP - 3737 EP - 3742 J2 - J. Chromatogr. A SN - 0021-9673 UR - http://www.sciencedirect.com/science/article/pii/S0021967311005140 Y2 - 2012/10/10/08:35:07 KW - Adsorption isotherms ER -