不同光学分析法对水中油类的检测比较
A Comparison among the Determination of Oil in Water by Different Optical Analysis Methods
尹慧1
作者信息
- 1. 上海利元环保检测技术有限公司,上海 201112
- 折叠
摘要
为提高水中油类检测的分析效率及数据准确性,利用紫外、红外和荧光等方法表征水体油类处理实验,发现振摇方式破乳避免了加入乙醇或其他破乳溶剂带来的干扰,以上3种检测手段的加标回收率均满足要求.通过比较锥形瓶振摇和硅酸镁吸附柱吸附萃取液中动植物油类,发现硅酸镁吸附柱吸附标准差更低、效果更好.利用碱液提纯四氯乙烯可应急监测环境水样中石油类和动植物油类,具有良好的重复性和准确性.
Abstract
The use of ultraviolet-visible,infrared and fluorescence spectrophotometers has shown that the way of shaking to break the emulsion can avoid the interference caused by adding ethanol or other demulsifying solvents so as to improve the analytical efficiency and data accuracy of batch samples.By comparing the conical flask shaking and magnesium silicate adsorption column to extract animal and vegetable oils,it is concluded that the former one results in lower standard deviation and indicates to be more effective.Using lye to refine tetrachloroethylene can be applied to emergency monitoring of petroleum and animal/vegetable oils in ambient water samples with satisfactory repeatability and accuracy.
关键词
分光光度法/石油类/动植物油类/破乳Key words
Spectrophotometry/Petroleum/Animal and vegetable oils/Demulsification引用本文复制引用
出版年
2024
NETL
NSTL
万方数据