固定污染源废气硫化氢的测定：亚甲基蓝分光光度法方法验证

Determination of Hydrogen Sulfide in Exhaust Gas from Stationary Pollution Sources: Method Validation of Methylene Blue Spectrophotometry

摘要: 本研究对《固定污染源废气 硫化氢的测定 亚甲基蓝分光光度法》(HJ 1388-2024)开展系统性方法验证，对方法的检出限、测定下限、精密度、正确度等关键指标进行系统验证。同时，比较了该方法与上海市地方标准的操作细节的差异。研究结果表明，本实验室已具备采用该方法开展固定污染源废气硫化氢监测的能力，研究结果可为奉贤区及周边化工园区硫化氢的标准化监测提供技术支撑。

Abstract: In this study, key indicators including the detection limit, lower limit of determination, precision and trueness of the method specified in Determination of Hydrogen Sulfide in Exhaust Gas from Stationary Pollution Sources—Methylene Blue Spectrophotometry (HJ 1388-2024) were systematically verified. Meanwhile, the differences in operational details between this method and the relevant Shanghai local standard were compared. The results show that the laboratory is capable of monitoring hydrogen sulfide in exhaust gas from stationary pollution sources using this method. The findings can provide technical support for the standardized monitoring of hydrogen sulfide in Fengxian District and surrounding chemical industrial parks.