Determination of Organic Acids, Carbohydrates, ａnd

Polymer Phases (Organic Ion Exchangers)

In addition to our  range of silicagels we are offering sulfonated styrene-divinyl resins (GROM Polymer Phases) for the analysis of organic acids, carbohydrates, und sugar alcohols. The resins are available in the H-form (H⁺IEX), sodium-form (Na⁺IEX), Calcium-form (Ca⁺⁺IEX), and in the lead-form (Pb⁺⁺IEX).

For the polymeric columns up to 40% acetonitrile, 30% ethanol, or 5% isopropanol are used as organic eluents. Methanol should not be applied.

Organic columns should be washed for some hours with acetonitrile/water (30/70). Contaminations by metal ions are removed for the calcium-form column with a solution of 0.1 M calcium nitrate, for the H⁺-form column with 0.1 M sulfuric acid. The storage of the columns  is done under water or under 0.1 M sulfuric acid, respectively.        

Examples of  
AnalyzedSubstances

Analyzed in Application
(POL = POLYMER)

Examples of  
AnalyzedSubstances

Analyzed in Application
(POL = POLYMER)

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Acetic acid

Malic acid

Arabinose

Mannitol

iso-Butanol

Mannose

n-Butanol

Methanol

Citric acid

Oxalic acid

Ethanol

iso-Propanol

Ethylene glycol

n-Propanol

Formic acid

Raffinose

Fructose

POL2, POL3

Ribitol

Galactose

Saccharose

Glucose

Sorbitol

Glycerol

Succinic acid