摘要
建立了流动注射分光光度法测定孔隙水中氨氮的方法。在优化好的试验条件下,方法检出限为0.90μg/L,浓度在5.00~500μg/L具有良好的线性关系(相关系数R^2=0.9996)。相对标准偏差为0.70%~1.42%(n=8),加标回收率为97.6%~103.2%。与国标法测定结果的相对误差为0.2%~4.5%。分析速率达45个/h。
Under the optimum conditions, the detection limit was 0.90 μg/L with a linear range 5.00--600 μg/L（R^2=0.9996）. The precision were 0. 70%-1. 42M （n=8） and the recovery were 97.6% -103.2%. The relative error compared with the international standard method was 0.2%--4.5% and t detection frequency was 45 samples per hour.
出处
《分析仪器》
CAS
2017年第2期34-38,共5页
Analytical Instrumentation
关键词
流动注射
分光光度法
孔隙水
氨氮
flow-injection
spectrophotometry
pore water
ammonia
