紫外-可见分光光度法测定烤烟中亚硝酸盐的含量

Lili WANG,Jianmin CAO,Weisong YU,Yunbai WANG,Gensheng DING,Fanjiang XIA,Shuaishuai LIU

Tobacco Science and Technology（2013）

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Abstract

建立了紫外-可见分光光度法测定烤烟中亚硝酸盐含量的分析检测方法.对提取时的提取液脱色、提取效果、提取液的净化以及测定时提取液的吸取量进行了试验,同时考察了方法的稳定性、精密度和准确度,并用本方法测定了不同烤烟样品中的亚硝酸盐含量.结果表明:该方法操作简单、稳定性好、精密度高、适用范围广,回收率84.8％～98.2％.该方法适用于烤烟中亚硝酸盐含量的测定.

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Key words

Flue-cured tobacco,Nitrite,Ultraviolet and visible spectrophotometry

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