探讨分光光度法测定室内空气中甲醛的方法

针对室内空气家中的甲醛特点,对传统的乙酰丙酮分光光度法在采样时间、样品收集、采样流量等方面进行优化,优化后的空气质量测定方法提高了室内空气监测准确性、拥有简便性快捷性的特点。对某市12户住宅室内的甲醛含量进行了检测,其中8户住宅超过了国家室内空气质量标准GB/T18883-2002规定的甲醛质量浓度0.1 mg/m3。

Discussion on Determination of Formaldehyde in Indoor Air by the Spectrophotometric Method

According to the characteristics of formaldehyde in indoor air, traditional acetylacetone spectrophotometric method was optimized in the aspects of sampling, sample collection, sample flow and so on; the optimized air quality determination method improved indoor air monitoring accuracy, had simple and fast characteristics. In this paper, indoor air formaldehyde content of 12 residences in a city were detected, indoor air formaldehyde content of 8 residences was over the national indoor air quality standard GB/T 18883-2002.