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Identification and determination of organic compounds in the gas and particulate matter released by incense burning by ultrasonic extraction-gas chromatography-mass spectrometry
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Ziqi YUE1, 2, 3, Lu JIANG1, *, Zhigang LI2, Wei WANG1, 2, 3, Yawei WANG1, 2
Chinese Journal of Chromatography | 2025, 43(7) : 779 - 792
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Chinese Journal of Chromatography | 2025, 43(7): 779-792
• Articles •
Identification and determination of organic compounds in the gas and particulate matter released by incense burning by ultrasonic extraction-gas chromatography-mass spectrometry
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Ziqi YUE1, 2, 3, Lu JIANG1, *, Zhigang LI2, Wei WANG1, 2, 3, Yawei WANG1, 2
Affiliations
  • 1. State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China
  • 2. School of Environment,Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou 310024,China
  • 3. University of Chinese Academy of Sciences,Beijing 100049,China
Published: 2025-07-08 doi: 10.3724/SP.J.1123.2024.10022
Outline
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Statistical evidence indicates that individuals spend approximately 90% of their time indoors on a daily basis. A multitude of human activities, including incense burning, cooking, smoking, and the use of electrical appliances, can contribute to indoor air pollution. This phenomenon poses a significant risk of indoor exposure to human health risks. Incense burning, as one of the major indoor pollution sources, has been increasing in use in recent years due to its special effects in religious practices and regional lifestyles. Incense usually consists of herbs, wood powder, bamboo sticks, scented materials, and binder powders, and the specific chemical composition of each type of material is complex due to different uses and manufacturing processes; and the degree of complete combustion, thermal degradation and volatilization processes of different types of incense vary greatly, resulting in the release of gaseous and particulate organic compounds whose compositions are not yet clear. Studies have shown that the emission factors of particulate matter released from incense burning may be much higher than those produced during the combustion of charcoal, wood and cigarettes. The levels of organic pollutants emitted by incense burning, such as aromatic hydrocarbons, esters, ketones, benzenes, and phenols, are much higher than outdoor levels. Prolonged exposure to incense smoke has been shown to cause respiratory damage and potential genotoxicity. Therefore, accurate identification and measurement of the organic pollutants emitted from incense burning is particularly important to accurately assess their environmental and population health risks. Herein, this study established an analytical method based on ultrasonic extraction-gas chromatography-mass spectrometry (GC-MS) for the simultaneous determination of 67 organic compounds in gaseous and particulate emissions from incense burning. These compounds include 29 esters, seven benzene series, 14 phenols, and 17 polycyclic aromatic hydrocarbons (PAHs). Particulate and gaseous components released during indoor incense burning were collected using quartz filter membrane and self-made XAD-2 resin sampling tubes, respectively. Non-targeted analysis of incense components was performed using a GC-quadrupole-Orbitrap high-resolution mass spectrometry (GC-Q-Orbitrap-HRMS) to achieve preliminary identification of trace organic compounds in the incense-burning samples. Subsequently, targeted analysis was conducted using GC-MS in selected ion monitoring (SIM) mode, with quantification performed using the external standard method. Method validation results demonstrated good linearity for all 67 organic compounds within the range of 10 to 500 μg/L, with correlation coefficients (r)≥0.999 0. The limits of detection (LODs) and quantification (LOQs) were ranged from 0.02 to 0.33 µg/m³ and 0.03 to 0.67 µg/m³, respectively. At low, medium, and high spiked levels, the recoveries for the 67 organic compounds in the gaseous phase ranged from 72.7% to 119.0%, with relative standard deviations (RSDs) of 0.9% to 4.1%; for the particulate phase, the recoveries for the 67 organic compounds ranged from 71.5% to 118.9%, with RSDs of 0.7% to 9.5%. The established method was applied to the determination of indoor incense-burning samples (incense sticks and electrically heated incense powder), and the influence of different incineration methods on the types and contents of products was analyzed. The results indicated that during the same burning duration (30 min), the total content of gaseous and particulate organic compounds released from ignited incense sticks was higher than that from electrically heated powdered incense. The particulate organic compounds produced by the ignited incense sticks are mainly phenolics and PAHs, followed by esters, and benzene series. The composition of particulate organic compounds from electrically heated powdered incense was similar to that of incense sticks. A large amount of benzene series were detected in the gaseous organic compounds released by burning incense sticks, and the content was much higher than that of the other three types of organic compounds. The gaseous organic compounds released by electrically heated incense powder are mainly benzene series and phenols, followed by PAHs and esters. Compared with the previously reported related monitoring methods, this method is simpler and more efficient, providing a more convenient technical means for the sensitive screening of gaseous and particulate organic compounds released by incense burning.

gas chromatography-mass spectrometry (GC-MS)  /  incense products identification  /  organic compounds  /  indoor air
岳子琪, 姜璐, 李志刚, 王威, 王亚韡. 超声提取-气相色谱-质谱法识别和测定焚香释放气体及颗粒物中的有机化合物. 色谱, 2025 , 43 (7) : 779 -792 . DOI: 10.3724/SP.J.1123.2024.10022
Ziqi YUE, Lu JIANG, Zhigang LI, Wei WANG, Yawei WANG. Identification and determination of organic compounds in the gas and particulate matter released by incense burning by ultrasonic extraction-gas chromatography-mass spectrometry[J]. Chinese Journal of Chromatography, 2025 , 43 (7) : 779 -792 . DOI: 10.3724/SP.J.1123.2024.10022
  • National Natural Science Foundation of China(22021003)
  • China Postdoctoral Science Foundation(GZB20230808)
Year 2025 volume 43 Issue 7
19
9
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Article Info
doi: 10.3724/SP.J.1123.2024.10022
  • Receive Date:2024-10-29
  • Online Date:2026-10-30
  • Published:2025-07-08
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  • Received:2024-10-29
Funding
National Natural Science Foundation of China(22021003)
China Postdoctoral Science Foundation(GZB20230808)
Affiliations
    1. State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China
    2. School of Environment,Hangzhou Institute for Advanced Study,University of Chinese Academy of Sciences,Hangzhou 310024,China
    3. University of Chinese Academy of Sciences,Beijing 100049,China
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表12种不同金属材料的力学参数
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Family
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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