FOOD SCIENCE ›› 2001, Vol. 22 ›› Issue (9): 70-72.

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Determination of Trace Pb by Flame Atomic Absorption Spectrometry Associated with Flow Injection on- line Lipuid- Lipuid Extracton

   Zheng-Qun-Xiong   

  • Online:2001-09-15 Published:2012-02-15

Abstract:  A simple method for determinating trace Pb has been developed. In this work Pb was determined by FAAS using an on- line MIBK liquid- liquid extraction system after Pb2+ being chelated with I- .Manifold parameters and chemical conditions were described in detail.The sampling rate of 20h- 1 could be achieved.The detection limit for Pb was 1.2μ g/ml(3σ )and the relative standard deviation was 3.2% (n=10)at the concentration level of 0.2μ g/ml.

Key words:  , Flow injection on- line Liguid- Liquid extraction Pb;