原子荧光分析环境样品中汞荧光值漂移问题探讨
A Discussion on the Drift of Mercury Fluorescence Values in Environmental Sample Analysis by Atomic Fluorescence Spectrometry
刘榜城1
作者信息
- 1. 上海利元环保检测技术有限公司,上海 201114
- 折叠
摘要
实验发现,原子荧光汞荧光值漂移,可以通过去除实验器皿中汞污染和规避光漫反射缓解.实验器皿中汞污染会缓慢吸附于仪器管路,造成汞荧光值增强,使用强还原剂氯化亚锡浸泡0.5h,可以完全有效去除汞污染.原子化器高度优化调整至13cm,可以有效规避光的漫反射干扰,光的漫反射干扰会放大汞的信号波动,导致汞荧光值精密性变差.
Abstract
Through experiments and research,it is found that the drift of mercury fluorescence values in atomic fluorescence spectrometry can be relieved by wiping off contaminated mercury on laboratory vessels and avoiding light diffuse reflection to happen.As the contaminated mercury may slowly be adhered to instrumental pipeline resulting in an enhancement of mercury fluorescence values,immersion in strong reducing agent stannous chloride for half an hour can completely and effectively eliminate the contaminated mercury.On account of the light diffuse reflection may magnify the fluctuation of mercury signals to give rise to poor precision of the mercury fluorescence values,adjusting the atomizer to 13 cm in height can effectively avoid such interference.
关键词
原子荧光/荧光值漂移/汞Key words
Atomic fluorescence spectrometry/Fluorescence value drift/Mercury引用本文复制引用
出版年
2024
NETL
NSTL
万方数据