茶叶科学2012，Vol.32Issue(2)：95-99,5.
离子色谱法测定茶叶中的硝酸盐和亚硝酸盐
Determination of Nitrate and Nitrite in Tea by Ion Chromatography
摘要
Abstract
A method for simultaneous determination of nitrite and nitrate in tea was established. Tea samples were pre-treated by ultrasonic extraction, PVPP and solid-phase extraction cartridge clean up, and the resulting supernatants were injected into a high-capacity anion exchange column with suppressed conductivity detection. The results showed that the recovery nitrate was 88.6%~107.5% and nitrite was 89.3%~101.2%. The relative standard deviations (RSD) were 1.67% and 1.13% respectively. It was concluded that the advantages of the method are simple operation, fast and high accuracy.关键词
离子色谱法/茶叶/硝酸盐/亚硝酸盐Key words
ion chromatography/ tea/ nitrate/ nitrite分类
轻工纺织引用本文复制引用
蔡荟梅,侯如燕,高柱,彭传燚,宛晓春..离子色谱法测定茶叶中的硝酸盐和亚硝酸盐[J].茶叶科学,2012,32(2):95-99,5.基金项目
农业部现代农业产业技术体系(农和教发[2008]10号)、安徽省教育厅重点项目(KJ2011A105) （农和教发[2008]10号）
