... from Eka Chemicals
Kromasil® EternityTM
- designed for longer column life, even under extreme pH conditions
For Special Offer discount on Eka Eternity preparative columns  |
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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. | |||||||||
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| Available column dimensions | ||||||||||
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| For use in HPLC & UHPLC | ||||||||||
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| Modified silica* | --> | |
Longer lasting columns | --> | |
Better economy | ||||
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| 2.5µm & 5 µm particle sizes | --> | Easier scale-up & scale-own | --> | Analytical to preparative columns | ||||||
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| Smaller 2.5µm particle size | --> | High efficiency | --> | Faster separations | ||||||
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| Modified silica* | --> | pH 1 to 12 | --> | Improved method development | ||||||
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| *Modified silica | ||||||||||
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| 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. | ||||||||||
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| Column dimensions | 2.1mm id | 4.6 mm id | |||||
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| 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 |
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Column dimensions |
10mm id |
21.1mm id |
30mm id |
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| 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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