Metrosep Anion Dual 3 (6.1006.120)

For biological samples the Dual 3 made of PEEK isthe most suitable. With it separation problems can be solved surely both with and without chemical suppression. The performance profile is identical to that of the Metrosep Dual 2. This means that early eluting ions are well separated and the oxyhalides can be determined efficiently. The Metrosep Dual 3 can also be used for samples with high chloride butlow nitritecontents.If work is carried out by means of electrochemicaldetection, the Metrosep Dual 3 can be used for the determination of bromide and iodide.In order to increase the working life of the columnwe recommend the use of the Metrosep RP Guard (6.1011.020). Carrier materialPolymethacrylate with quaternaryammonium groupsColumn dimensions100 x 4.0 mm Column bodyPEEK Standard flow0.8 mL/min Maximum flow1.2 mL/min Maximum pressure7 MPa Particle size6 µm Organic modifier0...20% pH range1...12 Capacity34 µmol (Cl Technical information Applications Conductivity detection without chemical suppression •difficult separation problems •difficult matrices •F
– Conductivity detection with chemical suppression •standard anions •F
– , formate, acetate ,Cl
– •SO
32– , SO
42– •simple matrices•ClO
2– , ClO
3– , ClO
4– , BrO
3– – ) •special separation problemsElectrochemical detection•Br
– , I
– Eluents Without chemical suppression Phthalic acid eluentPhthalic acid1660 mg/2 L5.0 mmol/L (standard eluent)Acetonitrile40 mL/2 L 2%NaOHpH = 4.5With chemical suppression Carbonate eluent Sodium hydrogen carbonate336 mg/2 L2.0 mmol/L (standard eluent)Sodium carbonate276 mg/2 L1.3 mmol/L 42