SUNSHELL Sunniest HPLC Columns ....

Sunshell - Core Shell Technology Columns


Novel Bonding Technique
An unique trifunctional silyl--reagent was developed as shown in Fiure. This silyl-- reagent can bond with any silanol groups on silica surface as shown in Figure because it can expand and contract by itself. This technique can make residual silanol groups on C18 stationary phase to be the least amount. Finally an end capping was done with trimethylsilyl--reagent (TMS).
Features
  • Little residual silanol groups by an unique bonding technique.
  • Excellent stability, especially under acidic pH conditions.
  • Sharp peak shape for acidic, basic and chelating compounds.
  • RP-AQUA is available under 100% aqueous conditions, and shows enhanced retention of polar compounds.
Separation of Standard Sample
  • Sunniest C18 is enough stable even if it is used under pH 10 condition. Regarding stability under basic pH condition, there is little C18 column like Sunniest C18 except for hybrid type C18. It is considered that our endcapping technique leads high stability.
  • Sunniest C18 can be used at the pH range from 1.5 to 10. Sunniest C8 can be used at the pH range from 1.5 to 9.
  • Our bonding technique can make column life be long. Sunniest RP-AQUA is less stable than Sunniest C18. However, Sunniest RP-AQUA has more stable than other company C18 columns.

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