摘要
采用溴化硝酸溶液吸收黄磷尾气,原子荧光光谱法测定As含量。总As在质量浓度0.05～0.30 mg/L范围内进行实验,并对云南某黄磷厂尾气中气态总As含量进行了检测。方法具有良好的线性关系（R2=0.9994）,相对标准偏差为2.4%,总As的平均回收率为96.2%～98.2%。方法适用于黄磷尾气中气态总As含量的测定,应用此法测得黄磷厂尾气中气态总As的平均质量浓度为0.901 mg/m^3。
In order to detect the concentration of total arsenic in yellow phosphorus tail gas,atomic fluorescence spectrometry was used to detect the total arsenic in yellow phosphorus tail gas that had been absorbed into HNO3-Br2 solution.Experiments were carried out with the concentrations of total arsenic varied from 0.05 mg/L to0.30 mg/L,and the method was used for the detection of the total arsenic in the yellow phosphorus tail gas discharged from a yellow phosphorus industry in Yunnan province.The results indicated that a satisfactory linear relationship could be obtained with the coefficient correlations of R2= 0.9994.The relative standard deviation（RSD） of ion selective electrode method is 2.4%,with the average recoveries of total arsenic varied in the range of 96.2% to 98.2%.This method possesses the good characters such as high sensitivity and selectivity,less disturbance,less reagent,sample dosage and ease operation.The atomic fluorescence spectrometric method was considered as a promising method for detecting total gaseous arsenic in yellow phosphorus tail gas.This method was applied to detection of the total gaseous arsenic in the tail gas discharged from the yellow phosphorous factory,and the average concentration was determined to be 0.901 mg/m^3.
出处
《分析试验室》
CAS
CSCD
北大核心
2014年第7期774-777,共4页
Chinese Journal of Analysis Laboratory
基金
国家自然科学基金项目(21277064)
教育部科学技术研究重点项目(210202)资助
关键词
原子荧光光谱法
黄磷尾气
气态总As
Atomic fluorescence spectrometry
Yellow phosphorus tail gas
Total gaseous arsenic
