碱性过硫酸钾法测定水中总氮的质量控制图分析  

The Study of Quality Control Chart for Determination of Total Nitrogen in Water by Alkaline Potassium Persulfate Method

作　　者：王琴 Wang Qin(Jinchang Ecological Environment Monitoring Center,Jinchang Gansu 737100,China)

机构地区：[1]甘肃省金昌生态环境监测中心,甘肃金昌737100

出　　处：《山西化工》2023年第10期45-46,49,共3页Shanxi Chemical Industry

摘　　要：依照化学分析中质量控制图的要求和应用,以碱性过硫酸钾消解法测定水中总氮例,探讨空白值X图、标准样品X图、加标回收率X图和平行双样R图等质量控制图在实际监测工作中的应用,提高数据分析和测定结果的准确性和可靠性。This study follows the requirements and applications of quality control charts in chemical analysis,using the alkaline potassium persulfate digestion method to determine total nitrogen in water.It explores the application of quality control charts such as blank value X-chart,standard sample X-chart,spiked recovery X-chart,and parallel double sample R-chart in practical monitoring work,improving the accuracy and reliability of data analysis and measurement results.

关 键 词：总氮 碱性过硫酸钾消解法 质量控制 质控图 

分 类 号：X832[环境科学与工程—环境工程]