氧弹燃烧—离子色谱法测定韭菜和韭黄中硫、氮、氯的含量

Determination of Nitrate and Nitrite in Chinese Chives and Hotbed Chives by Oxygen Bomb Combustion Ion Chromatography

本实验通过氧弹燃烧法分别对韭菜和韭黄进行燃烧,用过氧化氢碱性水溶液进行吸收,并用离子色谱法对样品中Cl-、NO2-、NO3-、SO42-的含量进行分离测定。通过对韭菜和韭黄的阴离子含量测定、分析,为进一步研究不同栽培条件对蔬菜阴离子含量的影响提供参考。

This experimentis to bum Chinese Chives and Hotbed Chives respectively through oxygen bomb combustion,using the Hydrogen peroxide alkail solution as absorption liquid, and utilize the ion chromatography for the separation and determination of anionic content, including chloride ion, nitrite ion, nitrate ion and sulfate radical ion.The determination and analysis of the anionic content of Chinese Chivesand Hotbed Chiveswould provide a reference for further research on vegetable anionic content in different cultivation conditions.