关键词: 悬浮液进样技术, 火焰原子吸收光谱法, 海产品, 铁, 锌, 铜

Abstract: The sample of seafood was bakeout, crushed, sifted and then suspended in 1.0 g/L agar solution, and so made into suspension. Copper, iron and zinc in shrimps, clam and oyster were successfully determined by flame atomic absorption spectrometry. The working condition of apparatus,the stability of suspension, the detection limit and the recovery rate were studied. The relative standard deviations were less than 2.7%. The determination results were consistent with those obtained by ashing method. The relative errors between them were less than±1.5%. The recovery rate lay between 96.5%～102.3%. In FAAS method, the displacement of ashing method by suspension technique for the sample pretreatment of seafood is possible.This method was convenient , speediness and accurate.

Key words: suspension sample introduction technique, flame atomic absorption spectrometry, seafood, copper, zinc, iron