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Effects of Column Temperature on Retention Time (SI-50 4E)

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Please use this column with suppressor type ion chromatography system.

IC SI-50 4E is suitable for anion and organic acid analysis. The temperature dependency of retention time is observed: At higher temperatures, elution time of anions that elute later than phosphate (HPO42-) tend to be longer and that of anions elute before nitrate (NO3-) tend to be shorter.


Sample : 20μL
F-
Acetic acid
Formic acid
Methacrylic acid
Cl-
NO2-
HCO3-
Br-
NO3-
HPO42-
SO42-
Oxalic acid


Column       : Shodex IC SI-50 4E (4.0mmI.D. x 250mm)
Eluent       : 3.2mM Na2CO3 + 1.0mM NaHCO3 aq.
Flow rate    : 0.7mL/min
Detector     : Suppressed conductivity