M/s. Gulf Analytical Supplies FZE have an established presence of nearly a decade in the middle east market and have a dominant presence in the field of separation science comprising mainly of chromatography with more than thousand columns supplied in the Middle East.  With the help of application support and technical support from our principals, we are the pioneers in the field of column chromatography.

     SGE Analytical Science
      Syringes and Accessories

     GC Capillary columns

      GC Accessories

      GC Supplies

      HPLC Columns


      Knauer Germany

      Dosing Pumps

      Knauer LC Columns Overview

Eurospher I
     Euroshper II

      Blue Orchid





      Thermo Fisher Scientific

      GC based Petroleum Analyzers &             Spectronic 200 Visible             Spectrophotometer


      Visible Spectrophotometer

      Cool Spectro 100

       Cool pH - Conductivity Meter Dual

      pH - Conductivity Meter            

Products / SGE Analytical Science / HPLC Columns

HPLC Columns
A graphical representation of the Renkin model and its implications are shown in Figure 4.
The drawback of large pore sizes in HPLC columns is the reduction in specific surface area. As the pore size increases, the accessible surface area for the solute to bind to decreases and with it the capacity of the column. Figure 5 shows the specific surface area of commercially available packing material versus the pore diameter.

The choice of pore size for a given separation is a compromise between resolution on the high pore diameter end and load-ability (capacity) on the low pore diameter end. A rough guide for suitable pore diameter ranges (where the pore diffusion coefficient is between 50 and 80 % of the diffusion rate in free liquid) is shown in Figure 6.

< 1 2 3 4 5 6 7 >
© 2012 Gulf Analytical Supplies FZE