Content Using hydrazine hydrate as reducing agent, the reduced palladium black was purified by hydrogen reduction, the determination of palladium in PdSO4 solution by hydrazine hydrate and hydrogen reduction gravimetric method was established. Under the optimized conditions, the palladium content of 4.00%~14.50% was determined. The results showed that the ranges and the relative standard deviations (RSD, n=6) was 0.02%、0.062%~0.16%, respectively. Compared with GB/T 23276-2009 method, the accuracy and precision of this method are higher. |