6.1006.620

The Metrosep A Supp 7 - 150/4.0 is the shorter A Supp 7 column. It allows similarly complex separation tasks to be solved the same way as with the 250 mm version, with no significant loss in separating efficiency. Chlorite and bromate can thus be easily separated from standard anions with this separation column. With the Metrosep A Supp 7 - 150/4.0, 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.

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.

6.1006.640

The Metrosep A Supp 7 - 150/2.0 is the shorter of the two A Supp 7 columns in the microbore version. With the Metrosep A Supp 7 - 150/2.0, 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. This microbore column is particularly suitable for use with an MS detector.

6.1006.650

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 microbore version of the Metrosep A Supp 7 - 250/4.0 is a high-performance separation column for the parallel determination of standard anions, oxyhalides 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.This microbore column is particularly suitable for use with an MS detector.

6.1006.430

The Metrosep A Supp 4 - 250/4.0 is an extremely robust column with very good separation properties. The separation phase is comprised of polyvinyl alcohol particles with quaternary ammonium groups and a diameter of 9 µm. This structure guarantees great stability and a greater tolerance to very small particles that could pass through the integrated filter pad. The Metrosep A Supp 4 - 250/4.0 has a medium ion exchange capacity; sulfate elutes after 12.5 minutes. The plate numbers that can be achieved with this separation column is higher than those for the Metrosep Anion Dual 2 - 75/4.6. The A Supp 4 - 250/4.0 is particularly suitable for all routine tasks in water analysis.

6.01021.230

The Metrosep A Supp 4 - 250/2.0 microbore column is an extremely robust column with very good separation properties. The separation phase is comprised of polyvinyl alcohol particles with quaternary ammonium groups and a diameter of 9 µm. This structure guarantees great stability and a greater tolerance to very small particles that could pass through the integrated filter pad. The Metrosep A Supp 4 - 250/2.0 has a medium ion exchange capacity and is particularly suitable for all routine tasks in water analysis.

6.1020.050

The Metrosep A Supp 10 - 50/4.0 separation column is based on a high-capacity polystyrene-divinylbenzene copolymer with a particle size of only 4.6 µm. This proven column concept optimized by Metrohm is characterized by its robust construction, high selectivity and outstanding separating efficiencies. High plate numbers and the favorable position of the system peak between fluoride and chloride supplement its properties. Temperature, flow and eluent composition can be used to modify the properties of the column to accommodate current applications directly.The short length in conjunction with the relatively low overall capacity of this 50 mm column enable rapid separations of standard anions. They can be determined in less than 9 minutes at a flow of 1.0 mL/min. The Metrosep A Supp 10 - 50/4.0 is well-suited to simple separation problems and uncomplicated matrices.

6.1020.010

The Metrosep A Supp 10 - 100/4.0 separation column is based on a high-capacity polystyrene-divinylbenzene copolymer with a particle size of only 4.6 µm. This column is characterized by high plate numbers and high selectivity. Sulfite and sulfate thus can be reliably separated in the eluent without the addition of organic modifiers. These characteristics are supplemented by great flexibility with respect to column temperature, flow and the composition of the eluent.Its robust construction, excellent price-performance ratio and very good separating efficiencies, in conjunction with moderate chromatography times, make the Metrosep A Supp 10 - 100/4.0 a universally applicable anion separation column.

6.1020.030

The Metrosep A Supp 10 - 250/4.0 separation column is based on a high-capacity polystyrene-divinylbenzene copolymer with a particle size of only 4.6 µm. The longest column of the A Supp 10 product range offers the greatest selectivity and flexibility. Utilization of the MSM-HC is particularly recommended with longer chromatogram duration. Changes in temperature, flow and composition of the eluent also enable a wide variety of separations of anions on this separation column.The Metrosep A Supp 10 - 250/4.0 has a very high capacity. It is suitable for samples with high ionic strength, for complex separation tasks and for analyzing samples in which great differences in concentration between the individual components are present.

6.1020.070

The Metrosep A Supp 10 - 75/4.0 separation column is based on a high-capacity polystyrene-divinylbenzene copolymer with a particle size of only 4.6 µm. Under standard conditions, phosphate elutes between nitrite and bromide. Currently, applications can be optimized by modifying temperature, composition of the eluent and flow.The capacity of the A Supp 10 - 75/4.0 has been optimized with respect to two aspects: matrix and speed. Baseline separation is achieved in samples with high ionic strength, e.g., for phosphate in cola beverages. Even in the presence of large quantities of nitrate and sulfate, the analysis time remains less than 7.5 minutes. High sample throughput is also of great importance in air analytics.