Analysis of liquid chromatography with nonuniform crystallite particles | Zendy

Lin Y. S. | Zendy; Ma Y. H. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Analysis of liquid chromatography with nonuniform crystallite particles

Author(s) -

Lin Y. S.,

Ma Y. H.

Publication year - 1990

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.690361013

Subject(s) - adsorption , nonlinear system , chromatography , porosity , chemistry , parametric statistics , particle (ecology) , crystallite , materials science , packed bed , sorption isotherm , particle size , particle size distribution , analytical chemistry (journal) , thermodynamics , organic chemistry , mathematics , crystallography , physics , statistics , oceanography , quantum mechanics , geology

A mathematical analysis for the pulse responses of a liquid chromatographic column packed with crystal powders having a particle size distribution and a nonlinear adsorption isotherm is presented. The mathematical model is solved numerically by the orthogonal collocation method. Based on the parametric analysis of the model, the effects of a symmetrical and moderately asymmetric PSD on the LC responses are shown to be negligible in comparison with the effects of other parameters, such as isotherm nonlinearity, whose effects are much more profound. The simulated responses are compared with the experimental response data for an LC column packed with silicalite crystals, and a good agreement is found between the theoretical and experimental results. Using the nonlinear LC model, the simultaneous determination of nonlinear adsorption isotherms and intraparticle diffusivities from LC pulse responses is demonstrated for liquids in porous adsorbents.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research