FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (6): 190-191.

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Determination of Calcium and Iron in Lotus Root Flour by Suspension Sampling - flame Atmic Absorption Spectrometry

 XU  Qiang, XIE  Ni, LI  Run-Guo, LI  Guo-De   

  1. 1.College of Chemistry and Life Science, Shenyang Normal University, Shenyang 110034, China; 2.China Medical University, Shenyang 110001, China; 3.Experimental Center, Shenyang Normal University, Shenyang 110034, China
  • Online:2006-06-15 Published:2011-09-22

Abstract: In this article, the suspension sampling technique applied to flame atomic absorption spectrometry was successfully used to determine calcium, iron in lotus root flour.The flour was suspended in agarsol and made into suspension.Choice of suspension agent and elimination of interference were studied.The test solution was injected into air-acetylene flame to deter- mine calcium and iron by standard addition method.This method is convenient rapid and accurate.

Key words: suspension sampling, flame atomic absorption spectrometry, arrowroot flour, calcium, iron