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| 连续流动法测定烟草中的挥发酚 | |
| 引用本文： | 于瑞国,蔡明招,李 荣,王 蕾.连续流动法测定烟草中的挥发酚[J].中国农学通报,2008,24(11):139-142. |
| 作者姓名： | 于瑞国 蔡明招 李 荣 王 蕾 |
| 作者单位： | 1. 华南理工大学化学与化工学院,广东广州,510641;广州秘理普天然植物技术开发有限公司,广东广州,510660 2. 华南理工大学化学与化工学院,广东广州,510641 3. 广州秘理普天然植物技术开发有限公司,广东广州,510660 |
| 基金项目： | 国家烟草专卖局资助项目 |
| 摘 要： | 建立一种测定烟草及烟草制品的连续流动方法，烟草浸提液在155℃，磷酸条件下蒸馏，挥发酚与4-氨基安替吡啉和铁氰化钾反应，在pH等于10.0,生成一种红色物质，其最大吸收波长为505nm。结果表明：在标准溶液浓度为0-6.0mg/L 的范围，有良好的线性关系，相关系数r为0.9996，方法的检出限(s/n=3)为3.9ug/L，平均回收率为98.5%-101.1%，相对标准偏差(RSD)为1.9%(n=10)。 |
| 关 键 词： | 烟草及其制品 挥发酚 连续流动分析 |
| 收稿时间： | 2008-08-04 |
| 修稿时间： | 2008-09-17 |
Determining Volatile Phenols in Tobacco &Cigarette by Continuously Flow Analysis |
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| Yu Ruiguo,Cai Mingzhao,Li Rong,Wang Lei.Determining Volatile Phenols in Tobacco &Cigarette by Continuously Flow Analysis[J].Chinese Agricultural Science Bulletin,2008,24(11):139-142. | |
| Authors: | Yu Ruiguo Cai Mingzhao Li Rong Wang Lei |
| Abstract: | Established a new method for determination of volatile phenols in tobacco &;cigarette extracts by continuously flow analysis, The sample extracted by water is distillated under the 155℃ condition ,and the distillation medium is 16%(v/v)H3PO4.The volatile phenols reacts with 4-antipryrine and potassium ferricyanide, the pink reactant is measured using Continuously Flow Analysis method. Beer`s law is obeyed over the concentration range of 0 mg/l—6 mg/l of phenol, the linear relationship is 0.9996, the detection limit(s/n=3) is 3.9ug/l, the average recovery is 98.5%-101.1%, and the relative standard deviation(RSD)is 1.9%(n=10). |
| Keywords: | Tobacco &zz Cigarettezz Volatile Phenolszz Continuously Flow Analysiszz |
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