FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (2): 300-301.

Previous Articles     Next Articles

Study on Determination of Pb(Ⅱ) in Food with Meso-tetra(4-Chlorol-3-Sulfophenyl) Porphyrin

 WANG  Tao, HAN  Shi-Tian   

  1. 1.College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang 050016, China;2.College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050018, China
  • Online:2008-02-15 Published:2011-08-24

Abstract: The colour reaction of p-ClTPPS4 with Pb(Ⅱ) was studied in this study. The results showed that complexation reaction can complete without heating, the apparent molar absorption coefficient is 2.51×105 L/mol·cm, linear range is 0~ 6μg/10ml, and the ability of anti-jamming is high. The proposed method has been applied for determination of Pb(Ⅱ) in food with satisfiedr esults.

Key words: porphyrin, food, Pb(Ⅱ), colour reaction