| 火焰原子吸收法测定六堡茶中的矿物元素 |
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| 引用本文： | 张雪红.火焰原子吸收法测定六堡茶中的矿物元素[J].食品科技,2011(5):277-278,282. |
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| 作者姓名： | 张雪红 |
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| 作者单位： | 广西师范学院化学与生命科学学院; |
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| 基金项目： | 广西教育厅科研基金面上项目(201012MS138) |
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| 摘 要： | 用硝酸和高氯酸湿法消解样品后,用火焰原子吸收分光光度法测定六堡茶中矿物元素的含量。结果显示,六堡茶中Ca、Mg、Fe、Mn、Zn、Cu的含量分别为0.330、0.387、0.527、0.975、0.035、0.033mg/g,方法的加标回收率为95.6%~102.4%,相对标准偏差为0.28%~2.35%。该法简便、快速,测定结果的精密度和准确度令人满意。
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| 关 键 词： | 火焰原子吸收 六堡茶 矿物元素 |
Determination of mineral elements in Liubao tea by flame atomic absorption spectrometry |
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| ZHANG Xue-hong.Determination of mineral elements in Liubao tea by flame atomic absorption spectrometry[J].Food Science and Technology,2011(5):277-278,282. |
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| Authors: | ZHANG Xue-hong |
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| Affiliation: | ZHANG Xue-hong (School of Chemistry and Life Science,Guangxi Teachers Education University,Nanning 530001) |
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| Abstract: | After Liu bao tea was digested by wet digestion with HNO3+HCIO4, the content of 6 kinds of mineral elements including Ca, Mg, Fe, Mn, Zn and Cu were determined by flame atomic absorption spectrometry. The result show that the contents of Ca, Mg, Fe, Mn, Zn and Cu in Liubao tea were 0.330, 0.387, 0.527, 0.975, 0.035 and 0.033 mg/g respectively. The relative standard deviation was from 0.28% to 2.35% and the recovery was from 95.6% to 102.4%. The method was simple and rapid with good precision and accuracy. |
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| Keywords: | FAAS Liubao tea mineral elements |
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