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Reference Standards
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Exempted Drug of Abuse Reference Standards
Ultra II™ UHPLC Columns, 1.9µm & 2.2µm
Ruggedness and reproducibility are guaranteed, as we control every step in the process, from base silica to bonded phase to final packed column. The silica particles are classified and selected to give an exceptionally tight distribution around 1.9µm and 2.2µm, respectively, while eliminating <1µm particles that can contribute to a poorly packed bed.
To optimize your ultra high pressure HPLC methods, reach for Restek small particle UHPLC columns!
High density bondings, for maximum retention. Restek manufactured, high-purity, type B silica gives excellent peak shapes for a wide range of compounds.
particle size: 1.9µm, 2.2µm
pore size: 100Å
pH range: 2.5 to 7.5
temperature limit: 80°C
