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Traditional Reverse Phase Materials

  • A wide range of phases available
  • Available in 3, 5, and 10 micron particles and in a variety of pore sizes up to 4000 A
  • Made under well-established reproducible manufacturing processes
  • Column sizes from microbore to preparative

ES Industries has developed a wide range of Chromegabond reverse phase columns to provide the means of separating a broad range of compounds. These phases are manufactured using established procedures and have been produced for a number of years to provide the chromatographer/QC chemist with continuous stream of highly reproducible columns. Chromegabond Reverse Phase Columns provide superior, reproducible separations and long column life with excellent peak symmetry. We have listed only the most popular sizes, however, all of the listed phases are available in any column dimensions that may be required.

Phase Phase Description Preferred Application
Chromegabond BAS BAS Available as a C8, C18, Phenyl, and Cyano
Chromegabond BAS-CN BAS Cyano Offers different selectivity than C8, C18, and Phenyl
Chromegabond BAS-P BAS Phenyl Moderately polar compounds. Retention characteristics are similar to C8 packing, but with different selectivity for polycyclic aromatic hydrocarbons, polar aromatics and fatty acids.
Chromegabond HC-C18 HC C18 ODS stationary phase with 22% bonded carbon
Chromegabond TMS (C1) Tri-Methyl Low-polarity, separation of mixtures with differing retention
Chromegabond C2 Dimethyl Retention times on this phase are much shorter than other RP phases
Chromegabond C3 n-Propyl Same as C2, but more stable
Chromegabond C4 n-Butyl Separation of peptides and proteins
Chromegabond C6 n-Hexyl Even coverage, very suitable for mobile phase additives
Chromegabond MC-CC6 Cyclohexyl (endcapped) Cyclohexyl but endcapped to making it more suitable for polar solutes. Extremely useful for herbicides and other related compounds
Chromegabond C8 n-Octyl Reversed phase and ion-pairing chromatography. Moderately to highly polar (water soluble compounds) such as small peptides, proteins, steroids, nucleosides, and pharmaceuticals
Chromegabond MC-8 n-Octyl (endcapped) Same as C8 but endcapped to make it more suitable for polar solutes
Chromegabond C18 Octadecyl Nonpolar to moderatelypolar compounds such as fatty acids, clycerides, polyaromatic hydrocarbons, esters, fat-soluble vitamins, steroids, prostaglandins and pharmaceuticals.
Chromegabond MC-18 Octadecyl (endcapped) Same as C18 but endcapped to make it more suitable for acids and bases
Chromegabond AP Alkyl Phenyl Moderately polar compounds. Retention characteristics are similar to C8 packing, but with different selectivity for polycyclic aromatic hydrocarbons, polar aromatics and fatty acids.
Chromegabond C8-BD Disopropyl/Octyl Same as C8, but highly base deactivated using steric shielding
Chromegabond C18-BD Disopropyl/Octadecyl Same as C18, but highly base deactivated using steric shielding
Chromegabond Phenyl BD Disopropyl/Phenyl Same as AP, but highly base deactivated using steric shielding
Chromegabond CN Cyano Offers different selectivity than C8, C18, and Phenyl
Chromegabond CN-BD Disopropyl/Cyano Same as CN, but highly base deactivated using steric shielding
Chromegabond CN-HS Cyano Same as CN, but higher surface area
Chromegabond C18-AI Octadecyl with amide linkage Use for the separation of weak acids
Chromegabond D/RP Diol Diol for reverse phase
Chromegabond A/RP Amino NH2 amine for reverse phase, used for sugars
Chromegabond DA/RP Diamine Diamine for reverse phase
Chromegabond TA/RP Triamine Triamine for reverse phase