靛蓝二磺酸钠分光光度法测定空气中臭氧浓度的不确定度评定

Assessment of uncertainty of ozone in air measured by indigo disulphonate spectrophotometry

对靛蓝二磺酸钠分光光度法测定某工作场所空气中臭氧浓度的不确定度进行了评定。结果表明,臭氧浓度的扩展不确定度为Uc=0.009mg/m3。影响臭氧浓度测定不确定度的主要因素是样品采集时所引入的不确定度。

The uncertainty of ozone concentration in air measured by indigo disulphonate spectrophotometry was assessed. The results showed that the expanded standard uncertainty of ozone concentration in air was Uc = 0. 009mg/m^2. The main factor that affected the uncertainty of ozone concentration came from the uncertainty of sample collection.