Effects of Added Acetonitrile on the Retention Time (SI-90 4E)

Please use this column with suppressor type ion chromatography system.

Ion chromatography column, IC SI-90 4E was used for the quantification of several anions. Addition of acetonitrile fasten the elution of hydrophobic ions ((I^- and SCN^-).


Sample :
SCN^-
Br^-
I^-
NO₂^-
SO₄^2-
Cl^-
PO₄^3-
F^-
NO₃^-

Column       : Shodex IC SI-90 4E (4.0mmID*250mm)
Eluent       : 1.8mM Na2CO3 + 1.7mM NaHCO3 + CH3CN 
Flow rate    : 1.0mL/min
Column temp. : 25deg-C