摘要
采用V(HNO_3)+V(HClO_4)=5+1对玫瑰花茶进行消解,用火焰原子吸收光谱法测定了其中金属营养元素的含量。结果表明,玫瑰花茶中含有丰富的人体所必需的金属元素,其中钾、钙、钠、镁、铁、锰、铜、锌含量分别为11.655 9,6.564 2 mg/g,23.314 7μg/g,2.053 3 mg/g,25.871 1,20.589 7,7.910 7,23.249 3μg/g,各元素比例有利于人体吸收,具有较高的营养保健价值,为人们选用花茶提供了一定的理论依据。
Metal elements in rose tea were determined with wet digestion V（ HNO3 ） ＋ V（ HCIO4 ） = 5 ＋ 1 by flame atomic absorption spectrometry. The results showed that the content of metal elements, such as K, Ca, Na, Mg, Fe, Mn, Cu, Zn was rich in rose tea , they was 11.6559 mg/g, 6. 5642 mg/g, 23. 314 7 μg/g, 2. 053 3 mg/g, 25. 871 1μg/g, 20. 589 7 μg/g, respectively, and the elemental proportion are beneficial to human, health is very high. The results will provide a certain theory bases for tea. 7. 910 7 μg/g, then the value 23.249 3μg/g of nutrition and peoples＇ reasonable choice of rose
出处
《广东微量元素科学》
CAS
2009年第11期53-57,共5页
Trace Elements Science
基金
滨州学院青年人才创新工程项目(BZXYQNLG200713)
滨州市科技发展计划项目
