摘要
利用高温消解与流动注射分光光度法的工作模式相结合,建立了一种总氮检测的快速分析方法。实验结果表明,在最佳检测条件下利用该方法测定总氮,对浓度在10~200μg/L范围内的水样有很好的线性,相关系数可达0.9996,方法的检出限为6.4μg/L。利用该方法分析皮革废水中的总氮回收率为95%~110%,具有不错的准确性,同国标法测得结果进行比对,结果吻合,具有实用价值。
The high temperature digestion combined with a flow injection spectrophotometry mode is used to a rapid analysis method for the detection of total nitrogen.The resuhs show that under optimal test conditions using this method for the detection of total phosphorus at the concentration range of 10 - 200μg/L has a good linear correlation coefficient which up to 0.9996,and the detection limit is 6.4 μg/L. The results of this method is in good agreement with the national standard method measured results when detect leather-making wastewater, and the recovery ratio at therange of 95%- 110%.
作者
莫珊
高跃昕
赵正喜
张新申
MO Shah GAO Yue-xin ZHAO Zheng-xi ZHANG Xin-shen(National Engineering Laboratory for CleanTechnology of Leather Manufacture, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Che ngdu 610065, China）Technology, Che ngdu 610101, China)
出处
《皮革科学与工程》
CAS
2017年第1期50-53,共4页
Leather Science and Engineering
基金
基金项目:海水营养盐自动分析仪的改进2007AA092001-5
关键词
制革废水
总氮
流动注射
分光光度法
leather-making wastewater
total nitrogen
flow injection
spectrophotometry
