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Determination of the Content of Nine Microelements in Tea of Lycium barbarum L. Leave by Microwave Digestion-AAS
Pages: 53-56
Year: Issue:  2
Journal: Guangdong Trace Elements Science

Keyword:  新疆枸杞叶茶 金属元素 微波消解 原子吸收光谱法;
Abstract: 采用硝酸作为消解液,用微波消解-原子吸收光谱法测定了新疆枸杞叶茶中Na、Ca、K、Mg、Pb、Zn、Cu、Mn、Fe 9种金属元素的含量,从微量元素的角度为利用新疆枸杞叶茶治疗心脑血管疾病提供科学的数据。结果显示,各元素回收率(n=6)在94.4%~101.98%之间(r=0.999 2~0.999 9),相对标准偏差(n=6)在0.72%~3.93%之间,该法具有很好的精密度和灵敏度。
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