YAO Yanhong.Analysis of primary speciation of trace elements in the Pleurotus citrinipileatus extract[J].Journal of Yanbian University,2017,43(04):350-352.
榆黄蘑提取物中微量元素的初级形态分析
- Title:
- Analysis of primary speciation of trace elements in the Pleurotus citrinipileatus extract
- Keywords:
- Pleurotus citrinipileatus; trace element; speciation analysis; ICP-MS
- 分类号:
- R917
- 文献标志码:
- A
- 摘要:
- 采用水和人工胃液对榆黄蘑中Fe、Mn、Cu和Zn 4种微量元素进行提取,并利用电感耦合等离子质谱法(ICP-MS)测定了其中微量元素的含量和化学形态.结果表明: 4种元素在人工胃酸提取液中的溶出率都高于水提液, 4种元素的总提取率在34.05%～79.68%之间,浸留比在0.45～4.88之间,悬浮态颗粒吸附率在6.54%～54.48%之间; 4种元素的可溶态中Mn、Cu和Zn的有机态含量高于无机态.本文方法的回收率为99.0%～106.0%,相对标准偏差小于3.84%.
- Abstract:
- The four elements, Fe, Mn, Cu and Zn in Pleurotus citrinipileatus were extracted using water and artificial gastric acid solution. The content and chemical speciation of elements were detected by inductively coupled plasma mass-spectrometry(ICP-MS). The results show that extraction of artificial gastric acid solution is higher than water, extraction of extractive rates of the elements was in the range of 34.05%-79.68% and immerse-residue ratio was in the range of 0.45-4.88. Adsorption ratio of suspension state was in the range of 6.54%-54.48%. The ratio of inorganic state of Mn, Cu and Zn among the four elements were higher than inorganic state in water-soluble state. The recovery ratios of the method was ranged from 99.0%-106.0% and relative standard deviations was less than 3.84%.
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备注/Memo
收稿日期: 2017-06-12作者简介: 姚艳红(1965—),女,高级实验师,研究方向为微量元素的形态分析.