Journal of Guangxi Normal University(Natural Science Edition) ›› 2011, Vol. 29 ›› Issue (3): 47-51.

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Nanocatalytic Spectrophotometric Determination of Palladium(Ⅱ)Using NiCl2-NaH2PO2 System

TANG Mei-ling, LIANG Ai-hui, LIU Qing-ye, JIANG Zhi-liang   

  1. College of Environment and Resources,Guangxi Normal University,Guilin Guangxi 541004,China
  • Received:2011-03-23 Online:2011-08-20 Published:2018-12-03

Abstract: In the medium of NaOH at 85 °C,the reduction of NiCl2 by NaH2PO2 to NiP particle is slow,its absorbance is weak,and the blank solution is colorlessand transparent.Upon addition of palladium(Ⅱ) catalyst,the reaction accelerated,and resulted in the absorbance enhancing at 395 nm.The color changed to dark.Based on those grounds,a catalytic spectrophotometric method was established for the determination of trace Pd(Ⅱ).Its linear range is 0.09~1.80 μg/L Pd(Ⅱ),with a detection limit of 0.03 μg/L Pd.This method has the advantage ofsimplicity,good selectivity,and high sensitivity.

Key words: palladium, catalytic spectrophotometry, NiP particles

CLC Number: 

  • O657.32
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