Metrosep A Supp 7 - 250/4.0

Metrosep A Supp 7 - 250/4.0
Beställningsnummer: 6.1006.630

Disinfection byproducts from water treatment are suspected not only of being health hazards but even of being carcinogenic. Oxyhalides have therefore become the subject of many investigations and standards (e.g., EPA 300.1 Part B, EPA 317.0, EPA 326.0). Of primary concern is bromate, which forms from bromide during the ozonization of drinking water. The Metrosep A Supp 7 - 250/4.0 is a high-performance separation column for the parallel determination of standard anions, oxohalides and dichloroacetic acid. With this column, these ions are determined with certainty and precision down to the lower µg/L range. The high detection sensitivity is achieved through the use of the 5 µm polyvinyl alcohol polymer, with which extremely high plate numbers and thus outstanding separation and detection properties are achieved. In addition, the separation can be adapted to the specific requirements of the application by modifying the temperature.

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Carrier material Polyvinyl alcohol with quarternary ammonium groups
Column capacity 110 µmol (Cl)
Column dimensions 250 x 4.0 mm
Eluents

Carbonate eluent (standard eluent)

Sodium carbonate: 3.6 mmol/L; 763 mg/2 L
(column temperature: 45 °C)

Carbonate eluent, modified

Sodium carbonate: 3.6 mmol/L; 763 mg/2 L
Acetone: 2%; 40 mL/2 L
(column temperature: 45 °C)
Housing material PEEK
Max. pressure 15 MPa
Maximum flow 1.0 mL/min
Organic modifier 0 - 100% (particularly acetone, acetonitrile, methanol)
Particle size 5 µm
pH range 3...12
Standard flow 0.7 mL/min
Temperatur range 20...60 °C

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