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Continuous Determination of Iron,Zinc,Manganese in Pepper by FAAS

GUO Jin-bo LI Shi-hui (College of Chemistry and Chemical Engineering,Luoyang Normal University,Luoyang 471022,China)  
The pepper sample treatment has been adopted by wet decomposition with HNO_3+H_2O_2.The con- tent of Fe,Zn,Mn in pepper is determined by atomic absorption spectrometry(FAAS).Through screening for many times,the best work condition of treatment is assured at last.The method is simple,precise and sensi- tive with the relative standard deviation of 1.9-3.3% and the recoveries of 86.52-94.45%.
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