Chelating Reagents (2) (NI-424)

EDTA and NTA were separated with the ion chromatography column NI-424.The calibration curve derived from the chromatograms for the concentrations 20mg/L,50mg/L,100mg/L showed a good linearity.

Sample : 100micro-L
1. 20mg/L Ethylenediaminetetraacetic acid, EDTA
2. 20mg/L Nitrilotriacetic acid, NTA,

Column       : Shodex IC NI-424 (4.6mmID*100mm)
Eluent       : 3mM H2SO4 aq.
Flow rate    : 1.0mL/min
Detector     : UV(210nm)
Column temp. : 40deg-C