Determination of Sulphur and Phosphorus of Recovered Nickel Hydroxide Simultaneously by ICP-AES

The sample of recovered nickel hydroxide was dissolved,and the amounts of sulfur and phosphorus in the sample were determined simultaneously by ICP-AES.The experimental conditions were optimized.The method is simple,fast,lower detection limit,wider linear range and higher precise.The detection limits are 0.3mg/L and 0.6mg/L(3σ)for sulfur and phosphorus,respectively,with RSD of 2.5% and recovery of 98.8%—102.9%.