摘要
采用微波消解电感耦合等离子体发射光谱法同时测定废气中的铅、镉、砷,在优化的试验条件下,方法在0 mg/L～5.00 mg/L范围内线性良好,铅、镉、砷的检出限分别为0.250μg/m3、0.125μg/m3、0.375μg/m3(按采样体积400 L、定容体积50 mL计),空白滤筒平行测定6次的RSD为2.3%～10.5%,加标回收率为83%～112%,与标准方法的测定结果无显著差异。
In this paper, microwave digestion and inductively coupled plasma-atomic emission spectrometry were used to determine lead, cadmium and arsenic in exhaust gas. Under the optimum conditions, the method has a good linearity in the range from 0mg/L to 5.00 mg/L. The detection limits of lead, cadmium, arsenic were 0.250 μg/m^3, 0. 125 μg/m^3, 0. 375 μg/m^3 respectively （ in the conditions of 400 L sample volume and 50 mL constant volume）. The RSD, which was parallelly determined by blank cartridge for 6 times, is between 2.3% and 10.5%. The spike recovery is 83% - 112%. There was no significant difference between the current method and the standard method.
出处
《环境监测管理与技术》
2013年第1期40-42,共3页
The Administration and Technique of Environmental Monitoring
关键词
铅
镉
砷
微波消解
电感耦合等离子体发射光谱法
废气
Lead
Cadmium
Arsenic
Microwave digestion
Inductively coupled plasma-atomic emissionspectrometry
Exhaust gas
