18 new ion chromatography columns

Including a high-performance separation column for the simultaneous determination of the standard anions, the oxo halides and dichloroacetic acid

The new column type Metrosep Dual 4 contains an entirely novel carrier material, namely a functionalised monolith based on silica.

This monolith allows flow rates of up to 5ml/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.

Peek body.

2um macro pores/13nm meso pores.

pH 2-8.

Capacity 22.5-90umol Cl.

Metrosep Dual 4-25.

Separation of some standard anions in less than a minute, eg nitrate in just 45 seconds - faster than many FIA systems.

Metrosep Dual 4-50.

Separation column for a large number of applications.

Its high capacity makes it largely insensitive to matrix effects.

Metrosep Dual 4-100.

The column of choice for the detection of very small amounts of toxic perchlorate - even in high ionic strength matrix.

Metrosep Dual 4 - Guard Kit with holder and three guard columns.

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 (eg, 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 45C.

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.

Metrosep A Supp 8-150.

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 4.6um.

Metrohm has optimised this time-tested column concept, which is characterised 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.

Metrosep A Supp 10-50.

Allows very fast separations of the standard anions.

Ideal for straightforward separation tasks and non-critical matrices.

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.

Metrosep A Supp 10-100.

Column of choice for routine applications.

Robust, excellent price-performance ratio and separation performance.

Universally applicable anion separation column.

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.

Metrosep A Supp 10 Guard.

Metrosep A Supp 10 S-Guard.

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