LC/MS Analysis of Sodium, Potassium and Chloride on SeQuant^® ZIC-HILIC

column

SeQuant ZIC-cHILIC, PEEK, 150 x 4.6 mm, 5 μm, 100 Å (1.50461.0001)

mobile phase

[A] acetonitrile; [B] ammonium acetate 62.5mM pH 5; (80:20, A:B)

flow rate

1.0 mL/min

pressure

1088 psi 75 Bar

column temp.

30 °C

detector

Sedere Sedex 85 ELSD (cell: standard nebulizer)

injection

20 μL

sample

100 μg/mL KCl and 100 μg/mL NaCl