Liu Jian, Zhang Feng, Zhu Bao-li, Xia Chao-yi
Public Health College, Southeast University, Nan Jing, Jiangsu Province, 210009 China.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2011 Nov;29(11):862-4.
To establish a method for rapid detecting nitric oxide (NO) and nitrogen dioxide(NO2) in the workplace air with infrared spectrometer.
The method of infrared spectrometer was developed to detect nitrogen oxide in laboratory, then applied to detect the concentration of nitrogen oxide in workplace air. The present method was compared with National Standard Methods.
NO and NO2 in air were detected simultaneously with the infrared spectrometer, not interfering each other. In standard condition, the minimum detectable concentrations of NO and NO2 were 0.67 and 1.03 mg/m3, the inferior limits of concentrations were 0.67 and 1.03 mg/m3 respectively. When the concentrations of NO and NO2 were 0.67-133.93 mg/m3 and 1.03-102.68 mg/m3, the accuracy and precision of detection were higher. As compared with National Standard Methods, the ratio of the results of two methods was 86.96% and 112.56%.
The method of infrared spectrometer is a rapid, simple and accurate method for detecting the concentrations of nitrogen oxide in the workplace air.
建立用红外光谱仪快速检测工作场所空气中一氧化氮（NO）和二氧化氮（NO₂）的方法。
在实验室建立红外光谱仪检测氮氧化物的方法，然后应用于检测工作场所空气中氮氧化物的浓度。将本方法与国家标准方法进行比较。
用红外光谱仪可同时检测空气中的NO和NO₂，互不干扰。在标准条件下，NO和NO₂的最低检出浓度分别为0.67和1.03mg/m³，浓度下限分别为0.67和1.03mg/m³。当NO和NO₂的浓度分别为0.67～133.93mg/m³和1.03～102.68mg/m³时，检测的准确度和精密度较高。与国家标准方法比较，两种方法结果的比值分别为86.96%和112.56%。
红外光谱仪法是一种快速、简便、准确检测工作场所空气中氮氧化物浓度的方法。
