摘要
以市售常见几种蔬菜为试验材料,依据NO-3与水杨酸在酸性介质(浓硫酸)中的显色反应,设计了一种建立在目视比色法基础上的快速测定蔬菜中硝酸盐污染程度的方法。试验结果表明:该方法测定蔬菜中硝酸盐污染程度的时间仅为12～15min,判定结果与国标法相符。
Using some vegetables sold in market as the experiment materials, based on the reaction that in a conc. sulfuric acid medium NO^-3 acting, as an oxidizing agent, reacts with salicylic acid, a method of fast determining nitrate pollution in vegetable was devised. Results of this method and those of Chinese standard method are in accordance. The determination process with this method requires twelve to fifteen minutes.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2005年第1期76-78,共3页
Journal of Jilin Agricultural University
基金
吉林省科技厅(吉科合字980216-03)
吉林农业大学青年科研启动基金资助项目(2002QQN001)
关键词
蔬菜
硝酸盐
快速测定
比色法
水杨酸
vegetable
nitrate
fast determination
colorimetry
salicylic acid
