Metrosep Anion Dual 4 – 50 (6.1016.020)

The Metrosep Dual 4 columns are based on a newlydeveloped carrier material, namely a functionalized monolith based on silica gel.The monolith allows aflow rate of the eluent up to 5 mL/min. The column is characterized by small back-pressure despite the high flow rate. In contrast to traditional materials the monolith has amuch larger surface due to its structureof macroporesand mesopores. This results in a high capacity of the column and a very small dead volume.The Metrosep Dual 4 – 50 is suitable for a great num-ber of applications. Thus, all standard anions can be separated in less than five minutes. The high column capacity makes it to a large extent insensitive to matrix influences.The column may be used with or without chemicalsuppression. It is recommended to install the RP Trap Column (6.1014.100) between the pulsation absorber and the injection valve, if p-cyanophenol is used as an eluent. Technical information Carrier materialMonolithic silica gel Column dimensions50 x 4.6 mm Column bodyPEEK Standard flow2.0 mL/min Maximum flow5.0 mL/min Maximum pressure20 MPa Particle sizeMonolith with 2-µm macroporesand 13-nm mesoporesOrganic modifier0...5% pH range2...8 Capacity45 µmol (Cl Applications •rapid separation •difficult sample matrices
– ) Eluent p-Cyanophenol eluentp-Cyanophenol2859 mg/2 L12.0 mmol/L (standard eluent)KOHpH = 7.5 ±0.1 46