| 青海枸杞子中矿质元素的测定 |
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| 引用本文： | 魏永生,古元梓,曹蕾,郑敏燕.青海枸杞子中矿质元素的测定[J].咸阳师范学院学报,2012,27(2):27-30. |
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| 作者姓名： | 魏永生 古元梓 曹蕾 郑敏燕 |
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| 作者单位： | 咸阳师范学院化学与化工学院,陕西咸阳,712000 |
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| 基金项目： | 陕西省科技厅科研基金项目(2010JM2009) |
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| 摘 要： | 采用HNO3/H2O2湿法微波消解制样,利用全谱直读电感耦合等离子原子发射光谱法(ICP-OES),全面详细地分析测定了青海红果枸杞子中的矿质元素,共检出K、Na、S、P、Mg、Ca、Si、Al、Fe、Zn、B、Cu、Mn、Se、Pb、Sr、Ti、Ba、Cr等19种矿质元素。分析结果相对标准偏差RSD值在2.41%~10.1%之间,其中10种元素在5%以内。枸杞子中所含人体常量元素K、Na、S、P、Mg、Ca等的质量分数分别为0.96%、0.25%、0.22%、0.19%、0.080%和0.077%;微量元素Fe、Zn、B、Cu、Mn、Se、Sr、Cr等的含量分别为5.97、1.34、1.09、0.88、0.57、0.52、0.33、0.055 mg/100g。此外,还含有9.35 mg/100g的Al和0.45 mg/100g的Pb。
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| 关 键 词： | 枸杞子 微波消解 矿质元素 ICP-OES |
Determination of Mineral Elements of Lycium chinense Mill from Qinghai |
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| WEI Yong-sheng,GU Yuan-zi,CAO Lei,ZHENG Min-yan.Determination of Mineral Elements of Lycium chinense Mill from Qinghai[J].Journal of Xianyang Normal University,2012,27(2):27-30. |
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| Authors: | WEI Yong-sheng GU Yuan-zi CAO Lei ZHENG Min-yan |
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| Institution: | (School of Chemistry and Chemical Engineering,Xianyang Normal University,Xianyang 712000,Shaanxi,China) |
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| Abstract: | By wet microwave digestion procedure with HNO3/H2O2to prepare samples,the mineral elements in Lycium chinense Mill were completely analyzed by inductively coupled plasma optical emission spectrometer(ICP-OES).The results showed there were 19 mineral elements in it.They are K,Na,S,P,Mg,Ca,Si,Al,Fe,Zn,B,Cu,Mn,Se,Pb,Sr,Ti,Ba and Cr.The RSD of results were between 2.41% and 10.1%.Among them,that of 10 elements was within 5%.The mass fraction of such necessary macroelements in the human body as K,Na,S,P,Mg and Ca were 0.96%,0.25%,0.22%,0.19%,0.080% and 0.077%,respectively.The contents of such microelements as Fe,Zn,B,Cu,Mn,Se,Sr and Cr were 5.97、1.34、1.09、0.88、0.57、0.52、0.33、0.055 mg/100g respectively.And the content of some other elements,Al is 9.35 mg/100g and Pb is 0.45 mg/100g. |
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| Keywords: | Lycium chinense Mill microwave decomposition mineral element ICP-OES |
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