›› 2012, Vol. 24 ›› Issue (4): 286-289.doi: 10.3969/j.issn.1004-616x.2012.04.011

• 论著 • 上一篇    下一篇

海滩牵牛微量元素水平及形态分析

郑付春;蔡聪艺;白雪婷;陈一村   

  1. (1.汕头大学医学院第一附属医院药剂科, 广东  汕头 515041; 2. 汕头大学医学院药理教研室, 广东 汕头 515041 )
  • 收稿日期:2012-03-30 修回日期:2012-05-31 出版日期:2012-07-30 发布日期:2012-07-30
  • 通讯作者: 陈一村

Study of content and state of trace elements in Ipomoea stolonifera

ZHENG Fu-chun; CAI Cong-yi; BAI Xue-ting; CHEN Yi-cun   

  1. (1. Department of Pharmacy, First Affiliated Hospital, Shantou University Medical College, Shantou 515041; 2. Department of Pharmacology, Medical College, Shantou University, Shantou 515041, Guangdong, China)
  • Received:2012-03-30 Revised:2012-05-31 Online:2012-07-30 Published:2012-07-30
  • Contact: CHEN Yi-cun

摘要: 目的: 研究海滩牵牛(Ipomoea stolonifera,IS)中微量元素Cu、Zn、Fe、Mn、Cr、Mg、Sr、Mo、Cd的水平及存在形态。方法:利用0.45 μm 滤膜、阳离子交换树脂、Amberlite XAD-2 型大孔吸附树脂将其中含量较高的元素 Cu、Zn、Fe、Mn、Mg 分为悬浮态和可溶态、游离态和非游离态、有机态和无机态等不同形态,用原子吸收光谱法测定其在各级分中的含量。结果:Cu、Zn、Fe、Mn、Cr、Mg、Sr、Mo、Cd 在各不同形态中分量与总量基本相符,Cu、Zn、Mg为IS的特征元素。对次级形态分析表明 , Cu、Mg、Fe、Mn 几乎均以游离态存在,只有极少部分为非游离态;而 Zn 的非游离态与游离态含量各占一半。Mg 主要以有机态存在,而Mn主要以无机态存在,Cu、Zn、Fe 则有机态和无机态各占一半。结论:海滩牵牛中存在多种与抗炎活性有关的微量元素,形成多种形态共处的混杂体系。

关键词: 原子吸收光谱法, 海滩牵牛, 微量元素

Abstract: OBJECTIVE: To study the content and state of trace elements in Ipomoea stolonifera (IS). METHODS:Using 0.45 um filter membrane,cation-exchange resin and Amberlite XAD-2 macroreticular resin,trace elements Cu,Zn,Fe,Mn and Mg,in higher concentration in IS,were separated into suspended state,soluble state,dissociative, non-dissociative state,organic state and inorganic state. Then the content of different states was determined by atomic absorption spectrometry. RESULTS:The main elements in IS were Cu, Zn,and Mg. Cu,Mg,Fe,Mn were mostly present in free state. Bound and free states of Zn accounted for 50% each; Mg was mainly present in organic state whilst Mn was present in inorganic state. For Cu,Zn,Fe,organic state and inorganic state was 50% each. CONCLUSION: The trace elements of IS were presented in suspended state and,soluble,stable and unstable,organic and inorganic forms at the same time.

Key words: atomic absorption spectrometry, Ipomoea stolonifera, trace element