Europe's leading HPLC column manufacturer.

Founded in 1978

... from Eka Chemicals

Kromasil® EternityTM

- designed for longer column life, even under extreme pH conditions

For Special Offer discount on Eka Eternity preparative columns


   
Kromasil Eternity™ is the latest innovation for separation and purification of compounds under reversed phase HPLC and UHPLC from Eka Chemicals. Since many pharmaceutical compounds are ionizable, the broad pH user window from 1 to 12 allows you more flexibility in altering retention time during method development. However, wide pH variations have a negative impact on column lifetime. That’s why Kromasil Eternity™ is based on a patent pending grafting technology, securing a long-lasting product even under tough pH conditions as well as at high temperatures.
Contact Hichrom to request a Technical brochure:  

Available column dimensions
For use in HPLC & UHPLC
Modified silica* --> Longer lasting columns --> Better economy
2.5µm & 5 µm particle sizes --> Easier scale-up & scale-own --> Analytical to preparative columns
Smaller 2.5µm particle size --> High efficiency --> Faster separations
Modified silica* --> pH 1 to 12 --> Improved method development
*Modified silica
The silica is bonded with an organosilane layer. Under specific proprietary conditions, the organosilane layer penetrates the silica, which results in a merged organic/inorganic interfacial gradient. The pores are virtually returned to their original size resulting in a surface presenting both inorganic (-OH) and organic (-R) silicic acid moieties. This process step is what gives Kromasil Eternity™ its extreme chemical stability extending the pH range and column lifetime.

Column dimensions available

Column dimensions 2.1mm id 4.6 mm id
Length 5cm 10cm 15cm 5cm 10cm 15cm 25cm
Particle size: 2.5µm D-KR-ET-2.5C18-50DM D-KR-ET-2.5C18-100DM - D-KR-ET-2.5C18-50D D-KR-ET-2.5C18-100D
Particle size: 5µm D-KR-ET-5C18-50DM - D-KR-ET-5C18-150DM D-KR-ET-5C18-50D D-KR-ET-5C18-100D D-KR-ET-5C18-150D D-KR-ET-5C18-250D

 

Column dimensions

 

10mm id

 

21.1mm id

 

30mm id

Length 5cm
15cm 25cm 5cm 15cm 25cm 5cm 15cm 25cm
Particle size: 5µm
D-KR-ET-5C18-50SP1 D-KR-ET-5C18-150SP1 D-KR-ET-5C18-250SP1 D-KR-ET-5C18-50P D-KR-ET-5C18-150P D-KR-ET-5C18-250P D-KR-ET-5C18-50P3 D-KR-ET-5C18-150P3 D-KR-ET-5C18-250P3

 

 

Other column dimensions available on request.

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