FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (7): 189-191.

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Catalytic Spectrophotometric Determination of Trace Cu (Ⅱ) in Foodstuffs

 HUANG  Rong-Bin, LIU  Lian-Qing, LIU  Wen-Han, XU  Wei-Ping   

  1. College of Chemical and Materials Engineering ,Zhejiang University of Technology
  • Online:2005-07-15 Published:2011-09-19

Abstract: A new catalytic spectrophotometric method was developed for determination of trace Cu(Ⅱ), based on the catalyticeffect of Cu (Ⅱ) on the reaction of Thymol Blue buffer solution buffer solution with H2O2 in pH=11.4, the detection limit was0.31ng/ml and the linear range 0180ng/25ml. The method has also been applied to the determination of trace amounts of manganesein the foodstuffs with satisfactory results.

Key words: cuprum, catalytic spectrotometric method, foodstuff