| 基于双磁法的茶叶中磁性物质检验的可行性研究 |
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| 引用本文： | 郭丽,林智,吕海鹏,谭俊峰,邵青,彭群华.基于双磁法的茶叶中磁性物质检验的可行性研究[J].安徽农业科学,2010,38(8):4024-4025. |
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| 作者姓名： | 郭丽 林智 吕海鹏 谭俊峰 邵青 彭群华 |
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| 作者单位： | 中国农业科学院茶叶研究所,浙江杭州,310008;中国农业科学院茶叶研究所,浙江杭州,310008;中国农业科学院茶叶研究所,浙江杭州,310008;中国农业科学院茶叶研究所,浙江杭州,310008;中国农业科学院茶叶研究所,浙江杭州,310008;中国农业科学院茶叶研究所,浙江杭州,310008 |
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| 基金项目： | 江苏省科技成果转化专项(BA2008096);;茶叶产业技术体系项目(nycytx-26) |
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| 摘 要： | 为探索双磁法测定茶叶中粉类磁性物的可行性,采用人为加入铁粉的方法,确定了双磁法在茶叶磁性物质检验中的最小样品量、加标回收率、精密度及检出限等指标。结果表明：双磁法可用来检测茶叶中的磁性物,其较小样品量为100g,加标回收率为99.20%～102.70%,RSD为0.64%～4.58%,检出限为0.003%。与测定仪法对比,双磁法在检验过程中不需使用任何化学试剂,也不需加热,具有较好的应用前景。
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| 关 键 词： | 茶叶 磁性物 双磁法 |
Feasibility of the Test on Magnetic Materials in Tea Based on Double-magnetism Method |
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| GUO Li et al.Feasibility of the Test on Magnetic Materials in Tea Based on Double-magnetism Method[J].Journal of Anhui Agricultural Sciences,2010,38(8):4024-4025. |
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| Authors: | GUO Li |
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| Institution: | Tea Research Institute;Chinese Academy of Agricultural Sciences;Hangzhou;Zhejiang 310008 |
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| Abstract: | In order to explore the feasibility of determining the magnetic material powder by using double-magnetism method,a certain amount of iron powder was added into tea samples to determine the feasibility of the minimum sampling amount,addition recovery rate,precision and detection limit of double-magnetism method in the magnetic material test of tea.The results showed that double-magnetism method could be used to detect the magnetic material in tea,its minimum sample amount was 100 g,the addition recovery rate... |
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| Keywords: | Tea Magnetic materials Double-magnetism method |
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