火焰原子吸收法测定不同品种番木瓜的微量元素含量

[目的]采用火焰原子吸收法测定4种不同番木瓜品种的微量元素含量。[方法]以华南地区普遍栽培的台农1号、夏威夷、华抗3号、红丰为试材，先采用先高温灰化再加HNO3，然后采用火焰原子吸收光谱法测定镁、钾、锌等6种微量元素的含量，并进行比较分析。[结果]4种番木瓜中镁、钾、钠含量丰富，锌、锰、铁3种微量元素的含量相对较低。不同品种的番木瓜微量元素含量也有较大差异，其中钠的最高含量为最低含量的5倍，锌的为2倍多，铁的为3倍，钾、镁差异不大，锰几乎没有差异。不同地区不同品种的木瓜中的Mn、Fe的含量变幅较大，K、Zn次之，Mg、Na变幅较小。[结论]通过建立微量元素的标准模型方程，可以快速检测出番木瓜的微量元素。

Determination on Trace Element Contents in Different Varieties of Carica papaya L. by Flame Atomic Absorption

[Objective] The study aimed to determine trace element contents in 4 varieties of Carica papaya L.with flame atomic absorption.[Method] With 4 kinds of C.papaya including Tainong 1,Hawaii,Huakang 3 and Hongfeng as test materials,the samples were digested with HNO3 after high temperature carbonization,6 kinds of trace elements such as Mg,K,Zn were determined by flame atomic absorption spectrometry and compared for analysis.[Result] Among 4 varieties of C.papaya,the contents of Mg,K and Na were rich and the c...