Data acquisition method of ozone standard reference photometer and its improvement
WANG Shuai-bin1,2,QIAN Meng1,2,DU Jian1,2,LI Ning1,2,FAN Qiang*1,2
1.Institute for Environmental Reference Materials of Ministry of Environmental Protection,Beijing 100029,China; 2.State Environmental Protection Key Laboratory of Pollutants Metrology and Reference Materials Research,Beijing 100029,China
Abstract：In order to establish a unified traceability and transmission system for automatic monitoring of ozone in ambient air, the ozone standard reference photometer should be adopted as measurement standard for quantity transfer to guarantee the data traceability of ozone monitoring and the consistency of measurement results. The three data acquisition methods for ozone standard reference photometer were introduced, i.e., serial connection, analog signal connection and instrument data storage-manual input. The data acquisition methods were innovatively improved using USB-to-DB 9 serial port line. All data were collected through serial connection. The improvement method was applied for the primary calibration of ozone calibrators from three different manufacturers (API T703, EC 9811 and TF 49 iPS). The average slope of obtained calibration curves was 1.011 99, 1.002 87 and 1.005 17, respectively. Meanwhile, the mean intercept was -0.548 14, -0.064 07 and -0.212 10 nmol/mol, respectively. Both average slope and mean intercept met the indexes of ozone primary calibration. The improved method was applicable for the instruments from different manufacturers and with different models. The operation was more convenient, the data acquisition was more true and effective, solving the problems of data distortion in analog signal connection as well as time and labor consuming in instrument data storage-manual input. The authenticity and convenience of data acquisition in primary calibration of ozone could be greatly improved.
王帅斌,钱萌,杜健,李宁,樊强. 臭氧标准参考光度计数据采集方法及改进[J]. 冶金分析, 2017, 37(10): 47-52.
WANG Shuai-bin,QIAN Meng,DU Jian,LI Ning,FAN Qiang. Data acquisition method of ozone standard reference photometer and its improvement. , 2017, 37(10): 47-52.
Wentworth P,Nieva J,Takeuchi C,et al. Evidence for ozone formation in human atherosclerotic arteries [J].Science,2003(302):1053-1056.
[2]
Brauer M,Jeffrey R. Ozone personal exposures and health effects for selected groups residing in the Fraser Valley[J].Atmospheric Environment,1997,31(14):2113-2121.
[3]
Weisel C P,Cody R P,Lioy P J. Relationship between summertime ambient ozone level and emergency department visits for asthma in central New Jersey[J]. Environmental Health Perspectives,1995,103(Supplement 2):97-102.
肖文,王维康. 49iPS型臭氧校准仪开展环境监测领域臭氧检测仪校准工作的研究[J].中国测试,2013,39(4):14-17.XIAO Wen,WANG Wei-kang.Study on calibration of ozone analyzers applied in environmental monitoring field by model 49i-PS ozone calibrator[J].China Measurement & Testing Technology,2013,39(4):14-17.
[7]
鲍雷,刘敏.O3 42M型臭氧自动分析仪运行维护探讨[J].环境科学导刊,2014,33(3):90-93.BAO Lei,LIU Min.Discussion on maintenance of O342M type automatic ozone analyzer[J].Environmental Science Survey,2014,33(3):90-93.
[8]
王帅斌,范洁,倪才倩,等.臭氧一级校准不同浓度点对校准的影响研究[J].化学试剂,2016,38(7):669-672.WANG Shuai-bin,FAN Jie,NI Cai-qian,et al.Calibration effects of ozone level 1 calibration with different concentration points[J].Chemical Reagents,2016,38(7):669-672.
[9]
朱智.紫外光度法臭氧分析仪性能检查与问题处理[J].北方环境,2011(7):45.ZHU Zhi.Ultraviolet light degree ozone analyzer performance examination and dealing with problems[J].Northern Environmental,2011(7):45.
[10]
王帅斌,李宁,田文,等.臭氧一级校准数据读取方式对校准的影响研究[J].中国环境监测,2016,32(4):109-113.WANG Shuai-bin,LI Ning,TIAN Wen,et al.Study on the effects of ozone level 1 calibration by different data reading methods[J].Environmental Monitoring in China,2016,32(4):109-113.
[11]
王帅斌,杜健,钱萌,等.臭氧标准参考光度计间接比对技术[J].分析测试学报,2016,35(10):1355-1359.WANG Shuai-bin,DU Jian,QIAN Meng,et al.An indirect comparison technique of ozone standard reference photometer[J].Journal of Instrumental Analysis,2016,35(10):1355-1359.
[12]
U.S.Environmental Protection Agency.Standard operating procedures for verification procedures of EPA's ozone standard reference photometer[EB/OL].(2012-12).https://www3.epa.gov/ttnamti1/files/ambient/qaqc/srp_sop_130425.pdf.
[13]
U.S.Environmental Protection Agency.Transfer standards for calibration of air monitoring analyzers for ozone[EB/OL].(2013-10).http://www3.epa.gov/ttn/amtic/files/ambient/qaqc/OzoneTransferStandardGuidance.pdf.
