气体监测参数对检测结果的影响分析及探讨

Discussing and Suggestions about Measurement Results Influenced by Gas Monitoring Parameters

通过分析、计算、讨论气体检出限与溶液检出限、气体标况体积的关系,发现气体标况体积不统一、检出限不统一导致监测结果可能出现矛盾差异,在横向、纵向对比时无可比、参考、稳定性,失去指导意义。建议根据不同监测目的,采用相应质量标准、排放标准等中的最严数值倒推气体采样标况临界值,根据地域气象差异和排放控制要求选定唯一中心目标值进行监测。解决了质控工作中同一气体监测方法检出限、结果无法统一的问题,为气体监测采样、数据上报、分析具体工作提供了有效可操作办法。

The relationship between gas detection limit, solution detection limit and gas volume under standard condition was discussed by analysis and calculation. It was found that the gas volume under standard condition and detection limit were not unified would probably result to contradiction and differences, there was no significance because it did not have comparable, reference and stability through transverse, fore - and- aft contrast. The critical value of gas sampling volume under standard condition was deducted which was recommended to use the most strict numerical in corresponding quality standards, emission standards according to different monitoring p^s, the only center target value was used in monitoring which was selected according to the local weather and emission control requirement. The unity of the detection limit and the results was solved which was in the same gas monitoring method in quality control. It provided an effective operation method for the gas monitoring sampling, data reporting, analysis in the specific work.