CAJ | 학술논문

本文采用氨氮纳氏试剂光度法，将显色、检测过程改进为自动稀释取样、自动添加显色剂并进行流动检测，研究结果表明：在流量为15mL/min ，经过50秒的显色后，进行测量，其线性方程为 y ＝1．522 x ＋0．003，相关系数 R2＝0．998，加标回收率为93％～110％，相对标准偏差小于2％，检测周期在2s ～1h 内可调，可在化肥淋溶实验中对氨氮进行连续在线检测，也可应用于水污染源中氨氮排放量的实时监测。
본문채용안담납씨시제광도법，장현색、검측과정개진위자동희석취양、자동첨가현색제병진행류동검측，연구결과표명：재류량위15mL/min ，경과50초적현색후，진행측량，기선성방정위 y ＝1．522 x ＋0．003，상관계수 R2＝0．998，가표회수솔위93％～110％，상대표준편차소우2％，검측주기재2s ～1h 내가조，가재화비림용실험중대안담진행련속재선검측，야가응용우수오염원중안담배방량적실시감측。
In this paper ,the process of the classical method to measure ammonia nitrogen by Nessler was improved to be automatic ,including sample dilution ,chromogenic agent addition and flow detection , the whole process was controlled in a minute .The results show that the equation of working curve is y =1 .522x + 0 .003 ,the correlation coefficient is 0 .998 ,the recovery rate is 93% to 110% ,the relative standard deviation is less than 2% .The testing cycle of this method is adjustable within 2s-1h ,it can be used in the fertilizer leaching experiments for continuous on-line detection of ammonia nitrogen ,also can be applied to real-time monitoring of the ammonia nitrogen in water pollution emissions .