Abstract
The experiments show that Pd(II) has a strong catalytic effect on the slowly decolored reaction between malachite green and NaH 2 PO 2 in acetate buffer solution (pH 4.4) at 100°C. The catalytic reaction system is investigated using high-performance liquid chromatography (HPLC) with ultraviolet detection at 625 nm. A novel HPLC method for the determination of 0.6-50 ng/mL Pd with a detection limit of 0.2 ng/mL is described. Palladium in real samples is analyzed using this catalytic HPLC method.
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