| 改装 Model 42S 化学发光氮氧化物仪测定大气中NO-NOx-NOy |
| 摘要点击 1356 全文点击 1819 投稿时间：1997-09-27 |
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| 中文关键词 NOy 化学发光法 转化器 大气监测 仪器改装 仪器标定 |
| 英文关键词 NOy chemiluminescence detection converter atmospheric measurement |
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| 中文摘要 |
| 将美国Model42S化学发光NO-NOx测定仪改装为NO-NOx-NOy同机测量。使用NH4NO3标定了不锈钢NOy转化器。在660±10℃,不锈钢转化器对HNO3和NH3的转化效率分别为100%和80%-90%.在该温度下,没有发现N2O被不锈钢转化器转化为NO.改装后仪器的分辨率、检测限、响应速率和线性度均未改变。根据对HNO3的研究结果,该仪器的NOy转化器带来的测量误差不大于5%.使用改装后的仪器连续测定了大气中的NO-NOx-NOy,得到可靠、合理的数据. |
| 英文摘要 |
| A Model 42S Chemiluminescence NO-NOx analyzer has been developed to measure both NOx and NOy by the same instrument simultaneously.The efficiencies of the stainless steel converter to HNO3 and NH3 were reckoned as 100% and 80%-90% respectively at 660±10℃.It was not found during experiments that N2O was converted to NO by stainless steel converter at 660±10℃.The resolving power,detecting limit,responding time and linearity of the developed instrument are not changed due to no changes in software and data processing program.The errors produced by the converter to HNO3 is no more that 5%.NO,NOx and NOy in ambient air were determined continuously and reliable and reasonable data were obtained. |
