Development of a New Rapid Detection System for Trace Components in Indoor Air of Passenger Vehicles

YAN Zhi-qi; WANG Jie; WANG Hui; WANG Fu-hua; ZHANG Li-jun; TAN Yin-xiang; WU Ri-wei; HUANG Wen-jie; HUANG Zao-tian; TAN Guo-bin

doi:10.19969/j.fxcsxb.22111701

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Development of a New Rapid Detection System for Trace Components in Indoor Air of Passenger Vehicles

Scientific Papers | 更新时间：2023-04-17

- Development of a New Rapid Detection System for Trace Components in Indoor Air of Passenger Vehicles
- Journal of Instrumental Analysis Vol. 42, Issue 3, Pages: 292-298(2023)
- 作者机构：
  
  1.广州禾信仪器股份有限公司，广东广州 510535
  2.广物汽贸股份有限公司，广东广州 510000
- 作者简介：
- 基金信息：
- DOI：10.19969/j.fxcsxb.22111701
  CLC：
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燕志奇,汪杰,王慧等.新型乘用车室内空气痕量组分快速检测系统的研制[J].分析测试学报,2023,42(03):292-298.

YAN Zhi-qi,WANG Jie,WANG Hui,et al.Development of a New Rapid Detection System for Trace Components in Indoor Air of Passenger Vehicles[J].Journal of Instrumental Analysis,2023,42(03):292-298.
燕志奇,汪杰,王慧等.新型乘用车室内空气痕量组分快速检测系统的研制[J].分析测试学报,2023,42(03):292-298. DOI： 10.19969/j.fxcsxb.22111701.

YAN Zhi-qi,WANG Jie,WANG Hui,et al.Development of a New Rapid Detection System for Trace Components in Indoor Air of Passenger Vehicles[J].Journal of Instrumental Analysis,2023,42(03):292-298. DOI： 10.19969/j.fxcsxb.22111701.

摘要

基于自主研制的真空紫外单光子电离飞行时间质谱仪和在线高精度甲醛分析仪，研制了一套新型乘用车室内空气痕量组分的快速检测系统。通过净化空气对乘用车室内空气进行置换，置换完成后，分别利用在线挥发性有机物质谱仪和在线高精度甲醛分析仪对乘用车室内空气中痕量组分和甲醛进行连续检测。结果表明，苯、甲苯、二甲苯/乙苯、苯乙烯和甲醛在对应浓度范围内具有良好的线性，相关系数（,r,2,）均大于0.99，相对标准偏差均小于5%，检出限分别为1.3 × 10,-9,、0.1 × 10,-9,、0.2 × 10,-9,、0.8 × 10,-9,、0.1 × 10,-9, mol/mol。采用该方法测定车内空气，结果显示，在短时间内，车内VOCs可快速释放达到释放亚平衡状态，并可得到亚平衡状态下的VOCs浓度及释放速率结果。测试车辆车内空气中待测物质苯、甲苯、二甲苯/乙苯、苯乙烯和甲醛的浓度分别为0.30、8.90、25.10、21.90、15.05 µg/m,3,。该方法无复杂耗时的采样过程，操作简便，能够满足乘用车室内空气痕量组分的快速检测筛查需求。

Abstract

A novel and rapid detection system for trace components in indoor air of passenger vehicles was developed，based on the independently developed vacuum ultraviolet single photon ionization time-of-flight mass spectrometer and on-line high precision formaldehyde analyzer．Firstly，the indoor air of passenger vehicles was replaced by purified air，then the trace components of volatile organic compounds in indoor air of passenger vehicles were continuously detected with volatile organic compounds online mass spectrometer，while the formaldehyde in indoor air of passenger vehicles was continuously detected by using an online high precision formaldehyde analyzer．The results indicated that benzene，toluene，xylene/ethylbenzene，styrene and formaldehyde exhibited good linearity in the corresponding concentration ranges，with their correlation coefficients（,r,2,） all greater than 0.99，and relative standard deviations less than 5%．The limits of detection were 1.3 × 10,-9,，0.1 × 10,-9,，0.2 × 10,-9,，0.8 × 10,-9, and 0.1 × 10,-9, mol/mol，respectively．This method was applied to determine the indoor air of passenger vehicles．The results showed that the VOCs in indoor air of passenger vehicles could be released quickly to reach a sub-equilibrium state in a short time，and the results of VOCs concentration and release rate under the sub-equilibrium state could be obtained．The concentrations of benzene，toluene，xylene/ethylbenzene，styrene and formaldehyde in indoor air of the tested vehicle were 0.30，8.90，25.10，21.90 and 15.05 µg/m,3,，respectively．With no complex and time-consuming sampling process and easy to operate，this proposed method could meet the requirements for rapid detection and screening on the trace components in indoor air of passenger vehicles.

关键词

乘用车室内空气痕量VOCs组分快速检测

Keywords

passenger vehiclesindoor airtrace components of VOCsrapid detection

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Shenzhen Bioeasy Technology，Inc.

Guangzhou Institute for Food Control

Guangdong Provincial Key Laboratory of Food Quality ＆ Safety，College of Food Science，South China Agricultural University

Key Laboratory of Sensors，Beijing Information Science and Technology University

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