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Shodex IC Anions_43.jpg

IC SI-series columns

for carbonate eluent (Na2CO3/NaHCO3)

The IC columns for anion analysis (suppressor method)

Product information


IC SI-90 4E (+ guard IC SI-90G)
IC SI-50 4E (+ guard IC SI-50G)
IC SI-52 4E (+ guard IC SI-92G)

  • Suitable for anion suppressor methods with sodium carbonate eluent

  • Suitable for the quantitative analysis of fluoride ion

  • SI-50 4E separates target inorganic anions from organic acids

  • SI-52 4E provides simultaneous analysis of oxyhalides and general inorganic ions

  • Carbonate peak does not interfere with analysis

  • Equivalent columns for Metrohm Metrosep A Supp 4, Metrosep A Supp 5, Metrosep A Supp 7 and Thermo Fisher Dionex IonPac AS14, IonPac As22, IonPac As23

IC SI-35 4D (+ guard IC SI-95G)

IC SI-35 2B (+ guard IC SI-2GF)

  • Columns for rapid analysis with suppressor method with sodium carbonate eluent

  • SI-35 4D provides rapid analysis of oxyhalides and general inorganic ions

  • SI-35 2B provides rapid analysis of general inorganic ions​

Typical analytes are: 

F- (fluoride)

CH3CO2- (acetate, acetic acid)

HCO2- (formate, formic acid)


Methacrylic acid

BrO3- (bromate)

Cl- (chloride)

NO2- (nitrite)

Br- (bromide)

ClO3- (chlorate)

NO3- (nitrate)

HPO42- (phosphate)

SO32- (sulfite)

SO42- (sulfate)

C2O4- (oxalate, oxalic acid)



S2O32- (thiosulfate)

CrO42- (chromate)

SCN- (thiocyanate)

Shodex columns can be used in the ion chromatography instruments of other manufacturers, for example Metrohm and Thermo Fisher Dionex.

Product overview

Product code
Product name
Functional group
Gel material
Plates per column
Particle size
Pore size