节点文献

应用低场核磁共振技术分析烟丝样品含水率的方法

The application of low-field nuclear magnetic resonance( NMR ) to moisture determination in cut-tobacco

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 LIANG Guohai;LIU Baizhan;ZHU Zhongliang;KONG Jilie;QU Yongsheng;Technical Center,Shanghai Tobacco Group Co., Ltd.;Department of Chemistry, Tongji University;Department of Chemistry, Fudan University;

【机构】上海烟草集团有限责任公司技术中心；同济大学化学系；复旦大学化学系；

【摘要】建立了基于核磁共振硬脉冲自由感应衰减信号(FID)的含水率测定方法。以烟丝样品为模型,在预先建立的工作函数基础上,可对多个样品水分进行快速测定。以核磁共振法与烘箱法的结果进行比较,结果显示核磁共振法具有理想的重复性、精密度和稳定性,5次平行测定结果的标准偏差小于0.5%,4天内测得的样品含水率极差为0.45%。更多还原

【Abstract】 A novel method for detecting moisture content in cut tobacco based on free induction decay(FID) signals by low-field nuclear magnetic resonance(NMR) was established. The method was validated by measuring moisture content in cut-tobacco samples. Comparison between NMR method and Oven-drying method showed that the former had good repeatability, accuracy and stability with RSDs of 5 parallel tests lower than 0.5% and sample range of moisture within 4 days being 0.45%.更多还原

【关键词】低场；核磁共振；烟丝；含水率； FID信号；
【Key words】 low-field； nuclear magnetic resonance(NMR)； cut-tobacco； moisture content； FID signal；

【基金】国家烟草专卖局资助项目“浓香型特色优质烟叶开发重大项目”(110201101001【TS-01】);上海市博士后科研资助计划“打叶复烤对烟叶香味物质的影响研究”(14R21422900)

【文献出处】中国烟草学报 ,Acta Tabacaria Sinica , 编辑部邮箱 ,2014年05期

【分类号】O657.2;TS411
【被引频次】17
【下载频次】337

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献