Liu Gan, Ma Yong, Wang Hong, Meng Yanrong, Huang Yu, Zheng Weitao
Engineering Research Center of Sports Health Intelligent Equipment of Hubei Province, Wuhan Sports University, Wuhan, China.
Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, China.
Front Chem. 2025 Jul 21;13:1605810. doi: 10.3389/fchem.2025.1605810. eCollection 2025.
This paper provides a strategy for detecting and monitoring volatile organic compounds released from plastic runway tracks. The method applies a simultaneous determination of 101 VOCs based on the environmental chamber-canister sampling-three-stage cold trap preconcentration-gas chromatography-mass spectrometry/flame ionization detection (GC-MS/FID) method. For this purpose, an environmental chamber, SUMMA canisters, an atmospheric pre-concentrator, and a GC-MS/FID dual detection setup were adopted to collect VOCs released from plastic athletic tracks in an environmental chamber, followed by their preconcentration in a three-stage cold trap including glass-bead cold trap concentration, Tenax tube cold trap concentration, and capillary glass tube absorption focusing. Qualitative and quantitative analyses of VOCs were conducted. The obtained results showed that the optimal environmental parameters for releasing VOCs from plastic runway tracks were an ambient temperature of 60°C, a relative humidity of 5%, an air exchange rate of 1.0 h, and a release time of 24 h. The established method showed a linear relationship within a range from 0.8 to 16.0 ppb, with linear correlation coefficients for different compounds ranging from 0.9546 to 1.0000. The detection limits of the method ranged from 0.01 to 0.74 μg·m (equivalent to 0.005-0.220 ppb, at 60°C and 1 atm), the relative error (n = 7) was between -10.16% and 12.84%, and the relative standard deviation (n = 7) was from 0.16% to 4.94%. The released VOCs can be divided into seven categories, including alkanes, alkenes, alkynes, aromatic hydrocarbons, halogenated hydrocarbons, oxygenated organic compounds, and nitrogenous organic compounds. Acetone (Z)-1,2-dichloroethene, 3-methylheptane, n-octane, n-decane, n-butane, trans-2-pentene, styrene, and 1,1,2,2-tetrachloroethane were common VOCs contained in athletic plastic tracks. The established simultaneous determination of VOCs based on the environmental chamber-canister sampling-three-stage cold trap preconcentration-GC-MS/FID method showed good linear and correlation relationships, high sensitivity and precision, and strong repeatability, which is suitable for the qualitative and quantitative detection of 101 kinds of VOCs from plastic athletic tracks. Finally, it was concluded that small differences in the mass concentration of the main VOC monomers appear in different athletic plastic tracks.
本文提供了一种检测和监测塑料跑道释放的挥发性有机化合物的策略。该方法基于环境舱-罐采样-三级冷阱预浓缩-气相色谱-质谱/火焰离子化检测（GC-MS/FID）法同时测定101种挥发性有机化合物。为此，采用环境舱、SUMMA罐、大气预浓缩器和GC-MS/FID双检测装置在环境舱中收集塑料田径跑道释放的挥发性有机化合物，然后在包括玻璃珠冷阱浓缩、Tenax管冷阱浓缩和毛细管玻璃管吸收聚焦的三级冷阱中对其进行预浓缩。对挥发性有机化合物进行了定性和定量分析。所得结果表明，塑料跑道释放挥发性有机化合物的最佳环境参数为环境温度60°C、相对湿度5%、空气交换率1.0 h和释放时间24 h。所建立的方法在0.8至16.0 ppb范围内呈线性关系，不同化合物的线性相关系数在0.9546至1.0000之间。该方法的检测限为0.01至0.74 μg·m（相当于60°C和1个大气压下0.005-0.220 ppb），相对误差（n = 7）在-10.16%至12.84%之间，相对标准偏差（n = 7）为0.16%至4.94%。释放的挥发性有机化合物可分为七类，包括烷烃、烯烃、炔烃、芳烃、卤代烃、含氧有机化合物和含氮有机化合物。丙酮、（Z）-1,2-二氯乙烯、3-甲基庚烷、正辛烷、正癸烷、正丁烷、反-2-戊烯、苯乙烯和1,1,2,2-四氯乙烷是田径塑料跑道中常见的挥发性有机化合物。所建立的基于环境舱-罐采样-三级冷阱预浓缩-GC-MS/FID法同时测定挥发性有机化合物的方法具有良好的线性和相关性，灵敏度和精密度高，重复性强，适用于塑料田径跑道中101种挥发性有机化合物的定性和定量检测。最后得出结论，不同田径塑料跑道中主要挥发性有机化合物单体的质量浓度存在微小差异。
