Dual Gas Flow Chromatographic Method for the Determination of Surface area and pore distribution of porous particles

1985 ◽  
Vol 2 (1-4) ◽  
pp. 160-165 ◽  
Author(s):  
Ji-min Yan ◽  
Qi-yuan Zhang
Keyword(s):  
Surface Area ◽  
Gas Flow ◽  
Chromatographic Method ◽  
Pore Distribution ◽  
Porous Particles

Extra-Column Effects in Determination of Rate Parameters by the Chromatographic Method

1996 ◽  
Vol 61 (6) ◽  
pp. 844-855 ◽  
Author(s):  
Olga Šolcová ◽  
Petr Schneider
Keyword(s):  
Chromatographic Method ◽  
Dynamic Method ◽  
Axial Dispersion ◽  
Transport Parameters ◽  
Porous Particles ◽  
Loop Detector ◽  
Single Pellet ◽  
Set Up ◽  
Extra Column Effects

It was shown that the sampling loop, detector and connecting elements in the chromatographic set-up for determination of transport parameters by the dynamic method significantly influence the response peaks from columns packed with porous or nonporous particles. A method, based on the use of convolution theorem, was developed which can take these effects into account. The applicability of this method was demonstrated on the case of axial dispersion in a single-pellet-string column (SPSR) packed with nonporous particles. It is possible to handle also responses from columns packed with porous particles by a similar procedure.

Validated high-performance thin-layer chromatographic method for the determination of dibenzyl cyclooctadiene lignans fromSchisandra grandiflora

2014 ◽  
Vol 27 (6) ◽  
pp. 460-465 ◽  
Author(s):  
Katragunta Kumar ◽  
Bokka Ramesh ◽  
Vadaparthi Rao ◽  
Borra Poornima ◽  
Vanka Sarma ◽  
...  
Keyword(s):  
Thin Layer ◽  
High Performance ◽  
Chromatographic Method
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