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硝酸和高氯酸(4+1)消解样品,火焰原子吸收光谱法测定香菜的根、茎、叶中Fe、Mn、Zn 3种微量元素的含量。结果表明:香菜植株中Fe、Mn、Zn元素含量丰富且不同部位含量不同,Fe、Mn、Zn含量分别为:根部,387.2μg/g、44.50μg/g、113.2μg/g;茎部,173.3μg/g、50.12μg/g、68.02μg/g;叶中,176.1μg/g、70.23μg/g、94.21μg/g。RSD<1.50%,回收率在96.70%~102.0%之间,结果令人满意。
Nitric acid and perchloric acid (4 + 1) digestion samples, and the contents of three trace elements Fe, Mn and Zn in root, stem and leaf of coriander were determined by flame atomic absorption spectrometry. The results showed that the content of Fe, Mn and Zn in coriander was rich and the contents of Fe, Mn and Zn were different. The contents of Fe, Mn and Zn were: root, 387.2μg / g, 44.50μg / g, 113.2μg / μg / g, 50.12μg / g, 68.02μg / g; leaf, 176.1μg / g, 70.23μg / g, 94.21μg / g. RSD <1.50%, the recovery rate between 96.70% ~ 102.0%, the result is satisfactory.