CFA1000连续流动分析系统测定水中总氮  

CFA1000 Continuous Flow Analysis System for Determination of Total Nitrogen in Water

作　　者：苏明玉[1,2] 杨倩[2] 顾海东[1] 

机构地区：[1]苏州科技学院江苏省环境科学与工程重点实验室,江苏苏州215009 [2]苏州市环境监测中心,江苏苏州215004

出　　处：《环境监控与预警》2015年第4期24-27,共4页Environmental Monitoring and Forewarning

摘　　要：通过绘制总氮的校准曲线,测定仪器的空白值、检出限和测定下限,并对仪器的A类不确定度进行评价,对比CFA1000连续流动分析系统与SKALAR SAN++型流动分析仪测定方法、国标法测定方法的分析结果。结果表明,在保证测定结果准确度和精密度的前提下,CFA1000连续流动分析系统具有较好的测试灵敏度。Using the CFA1000 continuous flow analysis system, the total nitrogen in water was determined through the calibration curve. Class A uncertainty of the instrument was evaluated by the determination of the blank value, detection limit and minimum quantitative detection limit. CFA1000, SKALAR, and SAN ＋ ＋ continuous flow analysis systems were compared for their determi- nation methods as well as the analysis results using the national standard method. The results showed that CFAI000 continuous flow analysis system had the highest sensitivity for detection among the three systems.

关 键 词：CFA1000连续流动分析系统 总氮 

分 类 号：X832[环境科学与工程—环境工程] O657.32[理学—分析化学]