EC analytical columns NUCLEODUR® 100-5 NH2, 5 µm

Pore size 110 Å, particle sizes 3 and 5 µm; 2.5 % C; not endcapped - USP L8

Multi-mode columns (RP and NP):
Normal phase chromatography (NP) with hexan, dichloromethane or 2-propanol as mobile phase for polar compounds such as substituted anilines, esters, chlorinated pesticides
Reversed phase chromatography (RP) of polar compounds like sugars in aqueous-organic eluent systems
Ion exchange chromatography of anions and organic acids using common buffers and organic modifiers
stable against hydrolysis at low pH, working range pH 2-8, 100 % stable in water, suitable for LC-MS

Ideal for:
polar compounds under RP conditions (sugars, DNA bases), hydrocarbons under NP conditions
Eluent in column is n-heptane for the NP mode - RP columns are delivered in acetonitrile - water. For changing the solvent system a rinsing step with THF may be necessary.
Eluent in column n-heptane, particle size 5 µm.