IC - Ion Chromatography
Columns for the analysis of anions and cations
3. Theory of Ion Chromatography
1. Product overview
IC NI-424
IC I-524A
Anion analysis for non-suppressor methods
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Quaternary ammonium groups
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Polyhydroxymethacrylate particles
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Steel housing
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IC I-524A fulfills USP L23 requirement
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IC NI-424 provides higher performance than IC I-524A
IC SI-series
Anion analysis for suppressor methods
<carbonate eluent>
IC SI-90 4E
IC SI-50 4E
IC SI-52 4E
IC SI-35 4D
IC SI-35 2B
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Quaternary ammonium groups
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Polyvinyl alcohol particles
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PEEK housing
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3.5 µm, 5 µm or 9 µm particle size
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for general inorganic ions and oxyhalides
IC SI-36 4D
Anion analysis for suppressor methods
<hydroxide eluent>
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Quaternary ammonium groups
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Polyvinyl alcohol particles
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PEEK housing
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3.5 µm particle size
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Good separation of sulfite ion / sulfate ion
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Analysis of seven general inorganic anions within 30 minutes under isocratic conditions
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for NaOH or KOH eluent
IC YS-50
IC YK-421
Cation analysis for suppressor and non-suppressor methods
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Carboxyl groups
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Polyvinyl alcohol or silica particles
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Steel housing
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5 µm particle size
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Supports the analysis of alkylamines and transition metals
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IC YS-50 has higher performance than IC YK-421
2. Tutorial video
3. Theory about Ion Chromatography
There are two types of Ion Chromatography methods: The suppressor method and non-suppressor method.
Shodex carries columns suitable for both types. As the name tells, the suppressor method uses a suppressor which removes ions that interfere with analytes measurement. The suppressor system is expensive, but some say the sensitivity of suppressor method is superior to non-suppressor method. In contrast, system required for non-suppressor method is cheaper, but the useable solvent is limited to the ones with low conductivity such as phthalic acid.
Suppressor Type Ion Chromatography Column
Shodex IC SI-90 and SI-50 are the suppressor type anion chromatography columns. SI-50 is the higher performance type of SI-90. SI-52 is another suppressor type column suitable for the separation of oxyhalides.
Non-Suppressor Type Ion Chromatography Column
Shodex IC I-524A and NI-424 are the non-suppressor type anion chromatography columns. NI-424 is the higher performance type of I-524A.
Shodex IC YK-421 and YS-50 are the non-suppressor type cation chromatography columns. YS-50 is the higher performance type of YK-421. They can separate both monovalent and divarent cations simultaneously.