Analysis of Iodide Ion (SI-90 4E)

Please use this column with suppressor type ion chromatography system.

Iodide ion was analyzed using IC SI-90 4E (a column for anion analysis). Iodide ion elutes after sulfate ion when analyzed at ambient temperature (25 °C), but it elutes before sulfate ion when analyzed at 50 °C. As shown here, the elution timing of iodide ion changes considerably compared to other anions, it is important to control the column temperature during the analysis.

Sample : 20 μL
1. F- 2 mg/L
2. Cl- 3 mg/L
3. NO2- 5 mg/L
4. Br- 10 mg/L
5. NO3- 10 mg/L
6. HCO3- 300 mg/L
7. HPO42- 15 mg/L
8. SO42- 15 mg/L
9. I- 10 mg/L

Column       : Shodex IC SI-90 4E (4.0 mm I.D. x 250 mm)
Eluent       : 1.8 mM Na2CO3 + 1.7 mM NaHCO3 aq.
Flow rate    : 1.0 mL/min  
Detector     : Suppressed conductivity

Sample Name Index

Operation Manual / Certificate of Analysis

Operation Manuals and Certificate of Analysis / Inspection Certificate for the following products can be downloaded here.

Product Name Index