Ion Chromatography Columns
Shim-pack IC Series
Analysis Examples Examples of Cation Analysis Shim-pack IC-C4 is a cation analysis column for non-suppressor IC. Because the pH of the mobile phase can be changed by selecting a different combination of acid and base in eluent, non-suppressor IC enables various kinds of analysis. High Resolution of Na+ and NH4+ High resolution of Na+ and NH4+ has been achieved by improving the peak shape of Na+. The influence on the peak shape of NH4+ from a high concentration of Na+ has been reduced, making it possible to analyze tap water of normal concentration under standard mobile phase conditions. The resolution can be further improved by using a mobile phase treated with 18-crown-6 additive.
Conditions
Column
: Shim-pack IC-C4 (150 mmL × 4.6 mmI.D., 7 μm) (P/N: 228-41616-91)
Mobile Phase : 2.5 mmol/L oxalic acid Flow Rate : 1.0 mL/min Col. Temp. : 40 °C Detection : CDD Injection Vol. : 50 μL
Analyses of a Standard Mixture of 5 Cations
Flexible Mobile Phase Selection Due to the features of non-suppressor IC, flexible mobile phase composition can be used. Besides normal inorganic cations, Shim-pack IC-C4 is capable of analyzing transition metals by using a mixed mobile phase.
Conditions
Column
: Shim-pack IC-C4 (150 mmL × 4.6 mmI.D., 7 μm) (P/N: 228-41616-91)
Mobile Phase : A) 2.5 mmol/L oxalic acid
B) 2.5 mmol/L methanesulfonic acid A/B = 60/40 (v/v)
Flow Rate Col. Temp.
: 1.0 mL/min
: 40 °C
Detection : CDD Injection Vol. : 50 μL
Pg A-102
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