【摘要】 分析了化学发光法和差分吸收光谱法(DOAS)测定环境中氮氧化物的原理及相应分析仪器的系统结构,指出了化学发光法氮氧化物分析仪的技术瓶颈及差分吸收光谱法的难点和关键技术。并对两种方法的优缺点及发展趋势进行分析。实验表明,化学发光法与差分吸收光谱法测定的结果具有很好的相关性。更多还原

【Abstract】 Principle and system structure of corresponding analytical instrument for using chemiluminescence and differential optical absorption spectroscopy(DOAS)to determine nitric oxides in environment were reviewed,the technical bottlenecks of nitric oxides analytical instrument of chemiluminescence and difficulty and key technology of DOAS were analyzed,with comparison of advantages and disadvantages as well as development trend of the two methods.Results showed that both chemiluminescence and DOAS have a good relevance.更多还原