| 原子吸收光谱法测定蔬菜中的铁、锰、铜、铅和镉 |
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| 引用本文： | 张辉,唐杰.原子吸收光谱法测定蔬菜中的铁、锰、铜、铅和镉[J].光谱实验室,2011,28(1):72-74. |
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| 作者姓名： | 张辉 唐杰 |
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| 作者单位： | 唐山师范学院化学系; |
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| 基金项目： | 唐山师范学院学院项目:地产谷物、蔬菜重金属污染分析 |
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| 摘 要： | 采用硝酸-高氯酸消解蔬菜样品,火焰原子吸收光谱法测定蔬菜中铁、锰和铜,石墨炉原子吸收光谱法测定蔬菜中的铅和镉。对仪器的工作条件作了探讨。在最佳实验条件下对韭菜、芹菜、洋白菜3种蔬菜进行测定,含量分别为铁：20.01、4.57、5.60μg.g-1,锰：1.445、1.141、1.204μg.g-1,铜：1.031、0.566、0.328μg.g-1,铅：0.106、0.085、0.076μg.g-1和镉：0.012、0.032、0.018μg.g-1。加标回收率为94.0%—106%。该方法简便、准确。
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| 关 键 词： | 原子吸收光谱法 金属元素 蔬菜 |
Determination of Fe,Mn,Cu,Pb and Cd in Vegetables by Atomic Absorption Spectrometry |
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| ZHANG Hui,TANG Jie.Determination of Fe,Mn,Cu,Pb and Cd in Vegetables by Atomic Absorption Spectrometry[J].Chinese Journal of Spectroscopy Laboratory,2011,28(1):72-74. |
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| Authors: | ZHANG Hui TANG Jie |
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| Institution: | ZHANG Hui TANG Jie(Department of Chemistry,Tangshan Normal College,Tangshan,Hebei 063000,P.R.China) |
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| Abstract: | The amounts of Fe,Mn and Cu in 3 kinds of vegetables were determined by flame atomic absorption spetrometry,and the contents of Pb and Cd in 3 kinds of vegetables were determined by graphite furnace atomic absorption spectrometry.Vegetables were dissolved with nitric acid and perchloric acid.The working conditions of the instrument were described.Contents of metals in chives,celery and cabbage were obtained 20.01,4.57,5.60μg.g-1 for Fe,1.445,1.141,1.204μg.g-1 for Mn,1.031,0.566,0.328μg.g-1 for Cu,0.106,0.085,0.076μg.g-1 for Pb and 0.012,0.032,0.018μg.g-1 for Cd,respectively.Recovery was between 94.0% and 106%.This method is accurate and easy. |
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| Keywords: | Atomic Absorption Spectrometry Metal Elements Vegetables |
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