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New Columns for Ion Chromatography

Metrosep Dual 4 - 25/50/100

The new column type Metrosep Dual 4 contains an entirely novel carrier material, namely a functionalized monolith based on silica. This monolith allows flow rates of up to 5 mL/min. Even at these high flow rates, the column's counter-pressure remains low. Compared to conventional materials, the monolith with its structure made up of macro- and mesopores has a much larger surface area. This contributes to the high capacityof the Metrosep Dual 4 column, whose dead volume is very low. More features:

  • PEEK body
  • 2 µm macro pores / 13 nm meso pores
  • pH 2 ... 8
  • capacity 22.5 ... 90 µmol Cl–
6.1016.010 Metrosep Dual 4 - 25
Separation of some standard anions in less than a minute, e.g. nitrate in just 45 seconds - faster than many FIA systems.
6.1016.020 Metrosep Dual 4 - 50
Separation column for a large number of applications. Its high capacity makes it largely insensitive to matrix effects.
6.1016.030 Metrosep Dual 4 - 100
The column of choice for the detection of very small amounts of toxic perchlorate - even in high ionic strength matrix.
6.1016.500 Metrosep Dual 4 - Guard
Kit with holder and 3 guard columns
6.1016.510 Metrosep Dual 4 - Guard
3 guard columns

Metrosep A Supp 7 - 250:
The oxo halide column for EPA methods

The disinfection by-products generated in water processing plants are suspected to be not only a health hazard but could even be carcinogenic. For this reason the oxo halides, above all bromate that is generated from bromide during the ozone-treatment of drinking water, have become the object of many investigations and standard methods (e.g., EPA 300.1 Part B, EPA 317.0).

Metrohm now presents a high-performance separation column for the simultaneous determination of the standard anions, the oxo halides and dichloroacetic acid. With the A Supp 7 these ions can be determined reliably and precisely down to lower ppb range. The separations require a temperature of 45 °C.

6.1006.630 Metrosep A Supp 7 - 250
Separation column for the simultaneous determination of the standard anions, the oxo halides and dichloroacetic acid

Metrosep A Supp 8 - 150:
For concentrated salt solutions and UV detection

The high-capacity column Metrosep A Supp 8 – 150 allows to determine nitrite, bromide and nitrate in concentrated salt solutions. UV detection at 215 nm opens up the determination of concentrations in the one-digit ppb range. A special sodium chloride eluent is used for these applications.

6.1017.010 Metrosep A Supp 8 - 150
6.1017.500 Metrosep A Supp 8 - Guard

Metrosep A Supp 10 - 50/75/100/250:
Robust but highly selective and performant

The Metrosep A Supp 10 separation columns are based on a high-capacity polystyrene/divinylbenzene copolymer having a particle size of only 4.6 µm. Metrohm has optimized this time-tested column concept, which is characterized by its robustness, high selectivity and excellent separation performance. By variation of temperature, flow rate and eluent composition, the column characteristics can be adapted to the application at hand.

6.1020.050 Metrosep A Supp 10 - 50
Allows very fast separations of the standard anions. Ideal for straightforward separation tasks and non-critical matrices.
6.1020.070 Metrosep A Supp 10 - 75
In samples having a high ionic strength it is possible, for example, to achieve the base-line separation of phosphate in cola drinks. Also in the analysis of air samples, it is fully capable of meeting the high requirements due to the highly variable denuder samples collected at a high rate during flight.
6.1020.010 Metrosep A Supp 10 - 100
Column of choice for routine applications. Robust, excellent price-performance ratio and separation performance. Universally applicable anion separation column.
6.1020.030 Metrosep A Supp 10 - 250
Separation column for samples having a high ionic strength, for complex separation tasks and for analyses in samples whose components differ widely in their concentrations.
6.1020.500 Metrosep A Supp 10 Guard
6.1020.510 Metrosep A Supp 10 S-Guard

Get more information on columns

Eluents

MPak Reagents are now available for the following column types:

Metrosep A Supp 1 HS 3.5 mmol/L sodium carbonate
Metrosep A Supp 4 1.7 mmol/L sodium hydrogencarbonate
1.8 mmol/L sodium carbonate
Metrosep A Supp 5 1.0 mmol/L sodium hydrogencarbonate
3.2 mmol/L sodium carbonate
Metrosep C 2 4.0 mmol/L tartaric acid
0.75 mmol/L dipicolinic acid

Also available:

  • Regenerant solution
  • Ultrapure water

Ask your local Metrohm distributor for more information.
 
   

column Metrosep Dual 4 - 100
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