Determination of Lead Content in Laiwu Ginger Pickles by Graphite Furnace Atomic Absorption Spectrometry
By optimizing the experimental procedure,a method for the determination of lead content in ginger pickles by microwave digestion-graphite furnace atomic absorption spectrometry was established.The results showed that the linear correlation coefficient of this method was 0.999 9,the detection limit was 0.007 mg·kg-1,the recovery rate was 92.7%～100.6%,and the relative standard deviation range was 0.1%～1.3%.The optimized method is convenient and fast,with good accuracy and high precision,and is suitable for the determination of lead content in ginger pickles.
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