摘要
2014年至2018年成都市平均相对湿度保持在70%以上,相对湿度常年较高,秋冬季节环境空气受颗粒物影响较大。为研究不同型号仪器在高湿环境下监测性能差异,2021年1月至3月,21台自动监测设备与3台手工监测进行为期88天的比对分析。监测时间段内,仪器T平行性最好,与手工监测数据相比,数据相对偏差较小,精密度更高,性能更加稳定,其次为BM仪器。校准膜重现性分析除WT仪器中的1台仪器无法满足要求,其余仪器均能满足。除WT仪器k值小于0.85,其余仪器均满足参比方法标准中斜率、截距、相关系数的要求,且斜率小于1,说明拟合度较高,且在监测过程中自动监测仪器监测数据较手工监测数据偏小可能性更高。
In order to study the difference of monitoring performance of different types of instruments in high humidity environment,21 automatic monitoring equipments and 3 manual monitoring devices were compared and analyzed from January to March 2021.During the monitoring period,the instrument T had the best parallelism.Compared with the manual monitoring data,the data had smaller relative deviation,higher precision and more stable performance,followed by the BM instrument.For the reproducibility analysis of calibration membrane,except for one of the WT instruments which could not meet the requirements,the other instruments could meet the requirements.Except that the K value of WT instrument was less than 0.85,all other instruments the requirements of slope,intercept and correlation coefficient in the standard of reference method,and the slope was less than 1.It showed that the fitting degree was high,and the possibility that the monitoring data of automatic monitoring instrument was smaller than that of manual monitoring was higher.
作者
白苑冰
罗蘭
王泰颖
王秋伟
王妍
李翔
Bai Yuanbing;Luo Lan;Wang Taiying;Wang Qiuwei;Wang Yan;Li Xiang(Sichuan Province Chengdu Ecological Environment Monitoring Center Station,Chengdu 610095,China)
出处
《分析仪器》
CAS
2022年第5期55-60,共6页
Analytical Instrumentation
