Simultaneous determination of nitrate and nitrite in tobacco by ion exchange chromatography

被引：0

作者：

机构：

[1] Technical Center, China Tobacco Fujian Industrial Limited Corporation

来源：

Wu, Q. (wuqh@fjtic.cn) | 1600年 / Acta Tabacaria Sinica Editorial Department, 55 Yuetan South Street, Beijing, 100045, China卷 / 19期

关键词：

Ion exchange chromatography; Nitrate; Nitrite; Tobacco;

D O I：

10.3969/j.issn.1004-5708.2013.06.004

中图分类号：

学科分类号：

摘要：

A sensitive ion exchange chromatography method was developed for simultaneous determination of nitrate and nitrite in tobacco. Ultrapure water was used for ultrasound-assisted solvent condition. Extract liquor were separated using anion exchange column. Nitrate and nitrite ion were then detected by conductance detector. Results showed that linear relations were observed in the range of 0.032~1.600 mg/L for nitrite, and 0.800~40.000 mg/L for nitrate. Detection limits were 1.06 mg/kg for nitrate and 1.23 mg/kg for nitrite. Recoveries were 96.3%~99.0% for nitrate and 96.1%~101.6% for nitrite. Both RSDs were below 5%.

引用

页码：25 / 33

页数：8

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