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SiliaChrom®- XDB HPLC Columns

SiliaChrom - XDB C18 and C8 are specially designed to present high pore size and low surface area for the separation of large hydrophobic molecules. The relatively low surface area allows a shorter retention time for that kind of compounds. SiliaChrom XDB C18 and C8 present the lowest carbon loading of  all SiliaChrom HPLC series. SiliaChrom XDB phases are ideal for separation of barbiturates, fat-soluble vitamins, fatty acids and steroïds.

siliachrom-xdb-xdb1-xdb2-c18 siliachrom-xdb-xdb1-c8.jpg

 

Main Characteristics

  • Better choice for molecules > 500 Dalton
  • High loading capacity
  • Wide pH range: 1,5 to 10,0
  • Double endcapped

More Information

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GENERAL SiliaChrom XDB CHARACTERISTICS
Columns Pore Size Particle Size Surface Area Carbon Loading
C18 150Å 3, 5 µm 200 m2/g 15%
C8 150Å 3, 5 µm 200 m2/g 8%
Columns pH Range Temperature Limit* Pressure Limit USP Code
C18 1,5-10,0 60°C 5500 psi L01
C8 1,5-10,0 60°C 5500 psi L07

* At pH range 5 to 7,5

Available column types: Analytical, Semi-Preparative, Preparative

Application Note

Evaluation of Resolution and Peak Shape of an Highly Hydrophobic Domestic Insecticid

SiliaChrom XDB C18, 5 µm, 4,6x150 mm
ACN/H2O (90/10)
Temperature: 23,0°C
Flow Rate: 1,00 mL/min
Detector: UV 235 nm
Injection Volume: 1 µL

xdb-c18-uracil-bioresmethrin

COLUMN PERFORMANCE RESULTS
Compounds Retention Time Peak Asymmetry Factor Theoretical Plates

(min) (USP) (USP)
Uracil 1,72 1,26 5936
Bioresmethrin 4,34 1,03 14090

 

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  1. SiliaChrom® Analytical HPLC Columns XDB C18 (H111805H-N100)
  2. SiliaChrom® Narrow Bore HPLC Columns XDB C18

    SiliaChrom® Narrow Bore HPLC Columns XDB C18

    SiliaChrom® XDB C18 presents the same bonded phase as the SiliaChrom XDB 1 C18 and XDB1 C18-300. The pore size of the silica support is intermediate, 150 Å, which allows to separate larger molecules than its 100 Å equivalent. The lower surface associated allows compounds to have shorter retention times. SiliaChrom XDB C18 is an excellent equivalent to Hypersil BDS-C18 and Zorbax XDB-C18.

  3. SiliaChrom® Narrow Bore HPLC Columns XDB C8

    SiliaChrom® Narrow Bore HPLC Columns XDB C8

    SiliaChrom® XDB C8 presents the same bonded phase as the SiliaChrom XDB 1 C18 and XDB1 C18-300. The pore size of the silica support is intermediate, 150 Å, which allows to separate larger molecules than its 100 Å equivalent. The lower surface associated allows compounds to have shorter retention times. SiliaChrom XDB C18 is an excellent equivalent to Hypersil BDS-C18 and Zorbax XDB-C18.

     

  4. SiliaChrom® Analytical HPLC Columns XDB C18

    SiliaChrom® Analytical HPLC Columns XDB C18

    SiliaChrom® XDB C18 presents the same bonded phase as the SiliaChrom XDB 1 C18 and XDB1 C18-300. The pore size of the silica support is intermediate, 150 Å, which allows to separate larger molecules than its 100 Å equivalent. The lower surface associated allows compounds to have shorter retention times. SiliaChrom XDB C18 is an excellent equivalent to Hypersil BDS-C18 and Zorbax XDB-C18.

  5. SiliaChrom® Analytical HPLC Columns XDB C8

    SiliaChrom® Analytical HPLC Columns XDB C8

    SiliaChrom® XDB C8 presents the same bonded phase as the SiliaChrom XDB 1 C18 and XDB1 C18-300. The pore size of the silica support is intermediate, 150 Å, which allows to separate larger molecules than its 100 Å equivalent. The lower surface associated allows compounds to have shorter retention times. SiliaChrom XDB C18 is an excellent equivalent to Hypersil BDS-C18 and Zorbax XDB-C18.

     

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