Nouryon™ from Sweden is producer of the famous and well-proven Kromasil® chromatographic silica. Kromasil® Eternity is Akzo-Nobel's first generation of highly stable silica phases. The silica/organosilane surface of the Kromasil Eternity platform offers a chemical stability that will secure a long-lasting stationary phase. The columns can be used over a wide pH range (2‒12), giving more flexibility with regard to method development and ‒optimization. The columns are available with two different modifications for analytical as well as preparative applications.
Phase-Name | Modification | Particle Size | Pore Size | End-capping | C-Content | USP | Surface | pH-Range | Tmax |
Kromasil® Eternity C18 | C18 | 2.5, 5 µm | 100 Å | + | 14% | L1 | 330 m2/g | 2.0‒12.0 | 60 °C |
Kromasil® Eternity PhenylHexyl | Phenylhexyl | 2.5, 5 µm | 100 Å | + | 12% | L11 | 330 m2/g | 2.0‒12.0 | 60 °C |
Identification of pesticide fipronil with Kromasil Eternity C18.
1. Fipronil
Test Conditions:
Column: Kromasil Eternity 2.5-C18 4.6 x 50 mm
Eluent: acetonitrile / water / acetic acid (70/30/0.2)
Flow rate: 1 mL/min
Temperature: 40°C
Detection: UV, 260 nm