基于HFID基准的PID原理VOC检测仪数据一致性与准确度评价

打开文本图片集

中图分类号：TK402 DOI：10.20042/j.cnki.1009-4903.2026.01.023

EvaluationofData Consistencyand AccuracyofPGM7320PID-based VOCDetectorwithHFIDas theReference Standard Abstract：Toclarify thedataconsistencyofVOCdetectionequipmentbasedonphotoionizationdetector（PID）and heatedflame ionizationdetector（HFID）principles，thisstudytookthehigh-precisionMEXA-1170HCanalyer（HFIDprinciple）as thereference to systematicaly evaluate theconcentrationmeasurement accuracyof the PGM7320handheld VOCdetector （PIDprinciple）.A standardizedHCreleaseenvironmentwasconstructedusinga Variable Volume/VariableTemperature（VVT）TestChamber（SHED）. Synchronoustestdatawerecollctedthrough6groupsofcomparativeexperimentswithdiferentstandingtimes.Theleastsquares methodwasusedfolinearfitinganalysisandidicatorssuchasrelaiveerroandcorrelationcoeficientwereadoptdtoevaluatethe accura-cyof thePIDdevice.Theresultsshowthatthetestdataof PGM7320andMEXA-1170haveasignificantlinearcorrelation. Therelative errorofthePIDdevice meets theaccuracyrequirementsforrapidindustrialon-sitedetec-tion.Thisstudy providesa standardizedevaluationmetodfortheperformanceverifctionandpracticalapplica-tionofPIdevicendalsoofersdatart for the collaborative use of two types of detection equipment with different principles.

Keywords：VOC detection; Photoionizationdetector; Flame ionizationdetector

0 引信

挥发性有机化合物（VOC）作为大气环境主要污染物之一，其浓度精准监测对大气污染治理、工业生产安全及室内空气质量保障具有重要意义。（剩余4326字）