| 微波灰化-原子荧光光谱法测定卷烟纸中镉 |
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| 引用本文： | 贺兵,王璐,苏钟璧,金永灿,张群芳,杨光宇.微波灰化-原子荧光光谱法测定卷烟纸中镉[J].理化检验(化学分册),2012(3):280-282. |
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| 作者姓名： | 贺兵 王璐 苏钟璧 金永灿 张群芳 杨光宇 |
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| 作者单位： | 云南省烟草化学重点试验室云南烟草科学研究院;云南民族大学化学与生物技术学院 |
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| 基金项目： | 云南省自然科学基金(2009YC022)资助项目 |
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| 摘 要： | 卷烟纸样品于瓷坩埚中,放入微波灰化系统中在450℃灰化20min,残渣加入体积分数为2.5%盐酸溶液溶解转入50mL容量瓶中定容后,供原子荧光光谱仪测定卷烟纸中镉的含量。在优化的仪器条件下,镉的质量浓度在0.2～10μg.L-1范围内与其荧光强度呈线性关系,方法的检出限(3s/k)为0.018μg.L-1。方法用于分析卷烟纸样品,所得回收率在94.4%～98.4%之间。方法的日内和日间相对标准偏差(n=7)分别为2.2%和2.8%。
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| 关 键 词： | 原子荧光光谱法 微波灰化 卷烟纸 镉 |
AFS Determination of Cadmium in Cigarette Paper with Microwave Assisted Ashing of Sample |
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| HE Bing,WANG Lu,SU Zhong-bi,JIN Yong-can,ZHANG Qun-fang,YANG Guang-yu.AFS Determination of Cadmium in Cigarette Paper with Microwave Assisted Ashing of Sample[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2012(3):280-282. |
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| Authors: | HE Bing WANG Lu SU Zhong-bi JIN Yong-can ZHANG Qun-fang YANG Guang-yu |
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| Institution: | 1(1.Yunnan Provincial Key Lab.of Tobacco Chemistry,Yunnan Research Institute of Tobacco,Kunming 650106,China; 2.School of Chemistry and Biotechnology,Yunnan National University,Kunming 650500,China) |
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| Abstract: | Sample of cigarette paper was ignited for 20 min in the microwave ashing system at 450 ℃,and the residue was dissolved with(φ) 2.5% HCl solution.The solution was diluted to 50 mL in a volumetric flask and used for AFS determination of Cd.Under the optimized conditions,linear relationship between values of fluorescence intensity and mass concentration of Cd was obtained in the range of 0.2-10 μg·L-1,with detection limit(3s/k) 0.018 μg·L-1.The proposed method was applied to the analysis of cigarette paper,giving values of recovery in the range of 94.4%-98.4%.Values of intraday and interday RSD′s(n=7) found were 2.2% and 2.8% respectively. |
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| Keywords: | AFS Microwave assisted ashing Cigarette paper Cadmium |
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