Shodex: Packed Columns for HPLC Analysis

NI-424(IC)

(Features of NI-424)
1) Developed for use in non-suppresser method anion chromatography.
2) Can perform high-sensitivity measurement of most inorganic anions and organic acid ions.
3) Has high theoretical plate number (more than 5,000) and superior selective separation. In particular, chloride and nitrate ions can be separated well, and the peak for sulfate ion sharpens.
4) Small column size of 4.6 mmID x 100mm length enables quick, solvent-saving separation.
5) Packing material is hydrophilic methacrylate gel chemically bonded with quaternary ammonium group.

1. Eluent to be Used
2. Anion Standards (15) (Comparison of NI-424 and I-524A)
3. Anion Standards (16) (NI-424: Phthalic Acid aq. Eluent)
4. Anion Standards (17) (Hydrophobic Inorganic Ions)
5. Anion Standards (18) (NI-424)
6. Tap Water (7) (NI-424)
7. River Water (3) (NI-424)
8. Rain Water
9. Effect of pH on Retention Time (NI-424)
10. Effect of Sample Load on Column Efficiency (4) (NI-424)
11. Linearity of Calibration Curves
12. Calibration Curves for Low Concentration F^-
13. Analysis of Pyrophosphate and Tripolyphosphate
14. Chelating Reagents (2) (NI-424)
15. Phosphonates
16. Carbonate and Other Anions (2) (NI-424)