Anion Standards (18) (NI-424)

Because of good separation of IC NI-424 (an anion analysis column for non-suppressor method), nitrite ion can be separated and quantitatively determined even if the concentration of chloride ion is high.


Sample : 100 μL
1. Cl-
2. NO2-


Column       : Shodex IC NI-424 (4.6 mm I.D. x 100 mm)
Eluent       : 8 mM 4-Hydroxybenzoic acid + 2.8 mM Bis-Tris + 2 mM Phenylboronic acid 
                + 0.005 mM *CyDTA aq.
Flow rate    : 1.0 mL/min
Detector     : Non-suppressed coductivity
Column temp. : 40 °C
* CyDTA: trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid

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