摘要
对原子荧光法测定含油废水砷含量过程中引入的不确定度进行分析,采用线性回归标准曲线法测定,利用被测物质浓度C和相应的荧光强度值I的线性关系,建立标准曲线回归方程,并对影响含油废水中砷测量结果不确定度的来源包括砷标准使用溶液浓度、标准曲线、测量重复性、样品预处理过程等进行分析和评定,认为标准曲线绘制、测量重复性、标准使用溶液浓度是影响测定结果的主要因素。
Uncertainty analysis is introduced into the process of rsenic content determination in oily wastewater by atomic fluorescence spectrometry.Using linear regression standard curve method,according to the linear relationship between fluorescence intensity and concentration,standard curve regression equation was established and the influence factors on the uncertainty of measurement results including standard solution of arsenic,standard curve,measurement repeatability,pretreatment process were analyzed and evaluated.Standard curve,measurement repeatability and standard solution concentration are the main factors affecting the determination results.
出处
《油气田环境保护》
CAS
2017年第5期51-53,56,共4页
Environmental Protection of Oil & Gas Fields
关键词
原子荧光法
含油废水
砷
不确定度
atomic fluorometry
oily wastewater
arsenic
uncertainty
作者简介
杨丹丹，2008年毕业于西南石油大学环境工程专业，现在中国石油长庆油田分公司技术监测中心从事环境监测工作。通信地址：陕西省西安市泾河工业园长庆北路2号，710201
