乙酰丙酮分光光度法在室内甲醛检测中的应用
The Application of Acetylacetone Spectrophotometry in Indoor Formaldehyde Detection
陈希尧 1蔡泽仁 1钟义林 1李学辉1
作者信息
- 1. 上海市计量测试技术研究院, 上海 200233
- 折叠
摘要
目的:为有效利用乙酰丙酮分光光度法,对室内甲醛含量进行检测.方法:通过控制样品采集、实验检测过程,验证乙酰丙酮分光光度法检测室内甲醛含量的回收率和精密度,并对 6 户住宅装修后的室内甲醛浓度进行检测.结果:吸光度和甲醛含量的线性回归方程为Y=0.004 68X+0.000 413,R2=0.999 8.乙酰丙酮分光光度法检测的3 组 5 μg/mL甲醛标准溶液回收率范围为 87.46%～97.28%,相对标准偏差(RSD)分别为:1.25%、0.90%、0.64%,都小于1.5%,重复性较好;6户住宅装修后的甲醛质量浓度满足国家标准,均小于 0.08 mg/m3.结论:乙酰丙酮分光光度法对于检测室内甲醛钠的结果良好可靠.
Abstract
Objective:To effectively utilize acetylacetone spectrophotometry to detect indoor formaldehyde content.Method:By controlling the sample collection and experimental detection process,the recovery rate and precision of acetylacetone spectrophotometry for detecting indoor formaldehyde content were verified,and the indoor formaldehyde concentration of 6 households after decoration was tested.Result:The linear regression equation for absorbance and formaldehyde content is Y=0.004 68X+0.000 413,R2=0.999 8.The recovery rate range of three groups of 5 μg/mL formaldehyde standard solution detected by acetylacetone spectrophotometry is 87.46%～97.28%,with relative standard deviations(RSDs)of 1.25%,0.90%,and 0.64%,all less than 1.5%,indicating good repeatability.The formaldehyde concentration of 6 households after decoration meets the national standard,all of which are less than 0.08 mg/m3.Conclusion:Acetylacetone spectrophotometry is a good and reliable method for detecting indoor sodium formaldehyde.
关键词
乙酰丙酮/分光光度法/室内/甲醛/检测Key words
acetylacetone/spectrophotometry/indoor/formaldehyde/detection引用本文复制引用
出版年
2024
NETL
NSTL
万方数据