Analysis of Anions = Carbonate and Other Anions (2) (NI-424)

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Carbonate and Other Anions (2) (NI-424)

IC NI-424 has high theoretical plate number (more than 5,000). Carbonate and other anions can be separated well with NI-424.

Sample : 50micro-L
1. 40.0mg/L HCO₃^-
2. 4.0mg/L H₂PO₄^-
3. 0.3mg/L F^-
4. 0.5mg/L Cl^-
5. 1.2mg/L NO₂^-
6. 2.0mg/L Br^-
7. 2.0mg/L NO₃^-
8. 2.0mg/L SO₄^2-

Column       : Shodex IC NI-424 (4.6mmID*100mm)
Eluent       : ^*18mM 4-Hydroxybenzoic acid + 2.8mM Bis-Tris + 2mM Phenylboronic acid + 0.005mM ^*2CyDTA(pH4.2)
Flow rate    : 1.0mL/min
Detector     : Shodex CD
Column temp. : 40deg-C

^*1: The prescribed pH can be obtained by mixing the reagents in the composition described here.
^*2: CyDTA: trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid

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