摘要
利用高压在线消解方式,采用连续流动光度法,同时测定水样中的总磷总氮。结果显示,总磷在0~5.00mg/L.总氮在0~10.00mg/L的范围内,均可获得良好的线性方程,相关系数(R)均达0.9999以上。该方法检出限低,准确度和精密度良好,能够满足水质分析要求,适用于大批量水样中总磷总氮的快速准确测定。
The total phosphorus and nitrogen in water samples are determined by high pressure on-line digestion and continuous flow photometry.The results show that there is a good linear relationship when the total phosphorus and total nitrogen are in the range of 0.00 to 5.00 mg/L and 0.00 to 10.00 mg/L respectively.The correlation coefficients(R)are all above 0.999.The method has low detection limit,good accuracy and precision,can meet the requirements of water quality analysis,and is suitable for the rapid and accurate determination of total phosphorus and total nitrogen in large quantities of water samples.
作者
王小娟
马晓玲
WANG Xiao-juan;MA Xiao-ling(Wuhu Hydrology and Water Resources Bureau,Wuhu 241000,China)
出处
《安徽水利水电职业技术学院学报》
2021年第1期33-36,共4页
Journal of Anhui Technical College of Water Resources and Hydroelectric Power
关键词
高压消解
连续流动
总磷
总氮
同时测定
highpressure digestion
continuous flow
total phosphorus
total nitrogen
simultaneous determi-nation
