不同产地无花果中微量元素的研究

Studies on trace elements of different regions of Wuhuaguo

目的:了解不同产地无花果中微量元素的含量。方法:用火焰原子吸收分光光度法测定无花果中Cu、Fe、Zn、Mn的含量,石墨炉原子吸收分光光度法测定Se、Cd、Pd的含量。结果:无花果中铜的含量在16.06～22.61 mg/kg范围内,铁的含量在7.94～38.30 mg/kg范围内,锌的含量在20.80～45.50 mg/kg范围内,锰的含量在10.99～34.33 mg/kg范围内,铅的含量在65.39～416.69μg/kg范围内,镉的含量在11.32～191.41μg/kg范围内,硒的含量在4.91～1648.80μg/kg范围内。结论:无花果中铜的含量应不得超过23mg/kg,铁的含量应不得少于7 mg/kg,锌的含量应不得少于20 mg/kg,锰的含量应不得少于10 mg/kg,铅的含量应不得超过0.5 mg/kg,镉的含量应不得超过0.2 mg/kg,硒的含量应不得少于0.4 mg/kg。

Objective：Studies on seven trace elements of different regions of Wuhuaguo.Method：To determining the content of Cu、Fe、Zn、Mn by flame atomic spectrophotography,the content of Se、Cd、Pd by graphite furnace atomic spectrophotography.Results：The content of Cu were 16.0622.61 mg/kg.The content of Fe were 7.94～38.30 mg/kg,The content of Zn were 20.80～45.50 mg/kg, The content of Mn were 10.99～34.33 mg/kg.The content of Pb were 65.39～416.69μg/kg,The content of Cd were 11.32～191.41μg/kg,The content of Se were 4.91～1648.80μg/kg.Conclusion：It is suggested that the contain of Cu should not be higher than 23 mg/kg.he contain of Fe should not be lower than 7 mg/kg,The contain of Zn should not be lower than 20 mg/kg.The contain of Mn should not be lower than 10 mg/kg.The contain of Pb should not be higher than 0.5 mg/kg,The contain of Cd should not be higher than 0.2 mg/kg.The contain of Se should not be lower than 0.665 mg/kg.