Research Article

Reversed-Phase Liquid Chromatographic Separation and Determination of Ni(II), Cu(II), Pd(II), and Ag(I) Using 2-Pyrrolecarboxaldehyde-4-phenylsemicarbazone as a Complexing Reagent

Figure 3

HPLC separation of Ni, Cu, Pd, and Ag complexes on Microsorb C18, 5 μm (  mm i.d.), with a mixture of methanol : water : acetonitrile : sodium acetate (1 mM) (68 : 25 :  6.5 : 0.5 v/v/v/v) with a flow rate of 1 mL/min and at a wavelength of 280 nm.
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