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悬浮进样原子吸收法测定茶叶中的微量元素
Determination of Microelements in Tea by Suspension Technique-Atomic Absorption Spectrometry
【摘要】 用悬浮液技术处理茶叶样品 ,即将样品烘干、粉碎、过筛 ,并悬浮在 1 5g/L琼脂溶液中制成均匀的悬浮液 ,建立了火焰原子吸收快速测定茶叶中微量元素的方法。该法快捷、简便、具有良好的精密度和准确度 ,应用于实际样品的测定结果满意
【Abstract】 The sample of tea was treated with the suspension technique.The samples were baked,crushed,sifted and then suspended in 1.5 g/L agar solution,and were made into a homogeneous suspension.A method for the determination of microelements in tea by flame atomic absorption spectrometry was established.The proposed method has the advantages of simple operation,high sensitivity and high speed.It was applied to the determinations of calcium in several milk samples with satisfactory results.
【关键词】 火焰原子光谱法;
悬浮液进样;
茶叶;
【Key words】 flame atomic absorption spectrometry; suspension technique; tea;
【Key words】 flame atomic absorption spectrometry; suspension technique; tea;
- 【文献出处】 广东微量元素科学 ,Trace Elements Science , 编辑部邮箱 ,2004年07期
- 【分类号】O657.31
- 【被引频次】4
- 【下载频次】115