| 用微波消解-FAAS法测定商洛绿茶中微量元素 |
| |
| 引用本文： | 何念武.用微波消解-FAAS法测定商洛绿茶中微量元素[J].江西农业学报,2014(7):108-110,114. |
| |
| 作者姓名： | 何念武 |
| |
| 作者单位： | 商洛学院生物医药工程系,陕西商洛726000 |
| |
| 基金项目： | 商洛学院服务地方专项“商洛绿茶茶多糖生物活性及其应用”（13SKY-FWDF007）. |
| |
| 摘 要： | 以硝酸-双氧水为消解液,采用微波消解-火焰原子吸收光谱(FAAS)法测定了不同产地商洛绿茶中6种微量元素(Se、Fe、Mn、Zn、Mg、Cu)的含量。结果显示:该方法的加标回收率为98.30%~102.40%,RSD为0.73%~2.81%。测定得到的绿茶样品中微量元素的含量分别为Se:2.63~5.23μg/mL;Fe:96.86~112.21μg/mL;Mn:193.44~231.18μg/mL;Zn:56.34~73.15μg/mL;Mg:164.53~183.92μg/mL;Cu:11.62~17.11μg/mL。
|
| 关 键 词： | 商洛 绿茶 微量元素 微波消解 FAAS法 测定 |
Determination of Trace Elements in Shangluo Green Tea by FAAS with Microwave Digestion |
| |
| HE Nian-wu.Determination of Trace Elements in Shangluo Green Tea by FAAS with Microwave Digestion[J].Acta Agriculturae Jiangxi,2014(7):108-110,114. |
| |
| Authors: | HE Nian-wu |
| |
| Institution: | HE Nian-wu ( Department of Biopharmaceutical Engineering, Shangluo University, Shangluo 726000, China) |
| |
| Abstract: | Taking nitric acid plus hydrogen peroxide as digestive solution , through adopting the method of flame atomic absorp-tion spectrophotometry （ FAAS） with microwave digestion , this study determined the contents of 6 kinds of trace elements （ Se, Fe, Mn, Zn, Mg, Cu） in Shangluo green teas from different producing areas .The results showed that the standard -adding recovery rates of determined 6 trance elements were from 98.30%to 102.40%.The relative standard deviations in the determination of these trace elements ranged from 0.73%to 2.81%.Through determination by this method , the contents of Se, Fe, Mn, Zn, Mg and Cu in green tea samples were 2.63~5.23, 96.86~112.21, 193.44~231.18, 56.34 ~73.15, 164.53~183.92, and 11.62 ~17.11 μg/mL respectively. |
| |
| Keywords: | Shangluo Green tea Trace element Microwave digestion FAAS method Determination |
| 本文献已被 维普 等数据库收录！ |
|
