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Poly column exclusion effects

Other widely used ion-exclusion columns for the analysis of organic acids in combination with carbohydrates and alcohols are Aminex HPX-87 H (Bio-Rad, Hercules, CA, USA) and Rezex ROA (Phenomenex, Torrance, CA, USA), which are typically operated at elevated temperatures for optimal resolution. Both column substrates are totally sidfonated poly(styrene-co-divinyl-benzene)-based resins with a degree of cross-linking of 8% that slightly differ in particle size. Figure 5.7 illustrates the better resolution and peak shapes with less fronting effects for organic acid analysis on the Rezex ROA colunrn in comparison to the Aminex HPX-87H, while the overall analysis times are comparable. [Pg.540]

See other pages where Poly column exclusion effects is mentioned: [Pg.264]    [Pg.1219]    [Pg.1147]    [Pg.43]    [Pg.306]    [Pg.198]    [Pg.742]    [Pg.1045]    [Pg.768]    [Pg.356]    [Pg.410]    [Pg.520]    [Pg.621]    [Pg.8282]    [Pg.540]    [Pg.126]    [Pg.670]    [Pg.973]    [Pg.363]    [Pg.348]    [Pg.302]    [Pg.145]   
See also in sourсe #XX -- [ Pg.97 ]



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