Determination of Metal Elements in Fructus Amomi Rotundus by High Resolution-Continuum Source Flame Atomic Absorption Spectrometry

doi:10.7506/spkx1002-6630-201404019

Abstract

Abstract:

An effective method was developed for the determination of metal elements in Fructus Amomi Rotundus by high
resolution-continuum source flame atomic absorption spectrometry. Samples were digested by microwave and the effects of
acetylene flow rate and burner height on determination results were investigated. The optimum parameters were chosen by
experiments. Under the optimum working conditions, the contents of Ca, Fe, Mg and Zn in Fructus Amomi Rotundus were
determined to be 7 641, 982, 5 367 and 87.7 μg/g, respectively. The recoveries for these metal elements from spiked samples
were 97.9%–106.3%, with relative standard deviations of 1.1%–2.1%. Therefore, this is a rapid, accurate, stable and lowpollution
method for determination of metal elements in food samples.

Key words: microwave digestion, high resolution-continuum source flame atomic absorption spectrometry (HR-CS FAAS), Fructus Amomi Rotundus, metal elements

CLC Number:

O657.31

CHEN Shang-long1,2, LI Chao1,2, LI Tong-xiang1,2, CHEN Hua-yun1. Determination of Metal Elements in Fructus Amomi Rotundus by High Resolution-Continuum Source Flame Atomic Absorption Spectrometry[J]. FOOD SCIENCE, 2014, 35(4): 91-94.

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