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Articles de revues sur le sujet « VOC (Volatile organic compounds) »

Auteur : Grafiati

Publié le 10 mars 2023

Mis à jour le 31 juillet 2025

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1

Fons, Françoise, Didier Froissard, Jean-Marie Bessière, Bruno Buatois, and Sylvie Rapior. "Biodiversity of Volatile Organic Compounds from Five French Ferns." Natural Product Communications 5, no. 10 (2010): 1934578X1000501. http://dx.doi.org/10.1177/1934578x1000501028.

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Five French ferns belonging to different families were investigated for volatile organic compounds (VOC) by GC-MS using organic solvent extraction. Fifty-five VOC biosynthesized from the shikimic, lipidic and terpenic pathways including monoterpenes, sesquiterpenes and carotenoid-type compounds were identified. The main volatile compound of Adiantum Capillus-Veneris L. (Pteridaceae) was ( E)-2-decenal with a plastic or “stink bug” odor. The volatile profiles of Athyrium filix-femina (L.) Roth (Woodsiaceae) and Blechnum spicant (L.) Roth (Blechnaceae) showed similarities, with small amounts of

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Apriyanto, Donni Kis, and Mitrayana Mitrayana. "SERAPAN SENYAWA ORGANIK VOLATIL SEBAGAI BIOMARKER PENYAKIT KANKER PARU: SUATU MINI REVIEW." Biomedika 12, no. 2 (2020): 58–64. http://dx.doi.org/10.23917/biomedika.v12i2.10114.

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ABSTRAKUlasan ini merupakan hasil studi literatur yang memberikan tinjauan umum serapan senyawa-senyawa organik volatil yang dianggap sebagai biomarker kanker paru. Senyawa-senyawa ini dapat menyerap pada panjang gelombang tertentu. Senyawa-senyawa organik volatil yang teridentifikasi didaftar dan dijabarkan panjang gelombang yang dapat mereka serap. Studi literatur ini menyajikan kelompok senyawa-senyawa organik volatil dapat menyerap pada rentang panjang gelombang inframerah. Hasil ulasan ini mungkin dapat bermanfaat untuk pengembangan skrinning kanker paru dengan menggunakan alat spektrosko

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Jergl, Zdeněk. "Long-term VOC emissions emitted by furniture parts." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 55, no. 1 (2007): 65–70. http://dx.doi.org/10.11118/actaun200755010065.

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The contribution refers to the problems of long-lasting emissions of VOC (volatile organic compounds) emitted from surface finishing furniture components. Furniture is one of the sources of VOC (volatile organic compounds) in living and working environment. By long-lasting affecting on a human body, higher emission concentrations of VOC in interior can cause health problems.Time is a significant factor influencing the number of VOC (volatile organic compounds) emitted from surface finishing furniture components. The number of long-term emissions was examined in particular phases of production

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Kornilova, Anna, Lin Huang, Marina Saccon, and Jochen Rudolph. "Stable carbon isotope ratios of ambient aromatic volatile organic compounds." Atmospheric Chemistry and Physics 16, no. 18 (2016): 11755–72. http://dx.doi.org/10.5194/acp-16-11755-2016.

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Abstract. Measurements of mixing ratios and stable carbon isotope ratios of aromatic volatile organic compounds (VOC) in the atmosphere were made in Toronto (Canada) in 2009 and 2010. Consistent with the kinetic isotope effect for reactions of aromatic VOC with the OH radical the observed stable carbon isotope ratios are on average significantly heavier than the isotope ratios of their emissions. The change of carbon isotope ratio between emission and observation is used to determine the extent of photochemical processing (photochemical age, ∫ [OH]dt) of the different VOC. It is found that ∫ [

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Berger, Shastine K., Rosario C. Morales, Katherine A. McCown, Kylie C. Wilson, Bertram T. Jobson, and Nancy A. C. Johnston. "Analysis of Volatile Organic Compounds from Compost." Atmosphere 16, no. 5 (2025): 591. https://doi.org/10.3390/atmos16050591.

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Many US states have adopted regulations to divert food waste from landfills to composts. While this may lower greenhouse emissions from landfills, volatile organic compound (VOC) emissions from compost may contain hazardous air pollutants or produce odors, posing potential public health concerns. Effective methods to analyze speciated VOCs in compost are needed to better understand VOC source generation. Here, a two-component compost sampling method was developed and employed consisting of a chilled impinger and pump apparatus to trap water-soluble VOCs, and dual sorbent tubes to capture hydro

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Kratt, Lothar, and Johannes Münz. "UV-Licht gegen VOC." UmweltMagazin 51, no. 05-06 (2021): 12–14. http://dx.doi.org/10.37544/0173-363x-2021-05-06-12.

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Yu, Man, Shao Peng Wu, Mei Zhu Chen, and Hong Hua Zhang. "Evaluation of Volatile Organic Compounds from Asphalt Using UV-Visible Spectrometer." Advanced Materials Research 472-475 (February 2012): 432–36. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.432.

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In order to evaluate volatile organic compounds (VOC) from asphalt, this paper explored to use ultraviolet and visible spectroscopy (UV-VIS) as the detection method of VOC. 288nm wavelength was selected as the characteristic absorption wavelength of VOC, finding that VOC quality and its absorbance value showed a good linear relationship which could be the basis for evaluation in this research. Experiments were carried out under different conditions, results of which showed that VOC emission was related to temperatures and asphalt specimens. Moreover, VOC emission increased with increasing temp

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Liu, Yu, Jun Shen, and Xiao Dong Zhu. "Volatile Organic Compounds Emissions of Particleboards in Response to Processing Parameters." Advanced Materials Research 250-253 (May 2011): 943–46. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.943.

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The purpose of this study is to reveal the concentration variations of VOC concentrations of larch particleboards with different processing parameters. The mat moisture content (MC), panel type and density were chosen as the influencing factors to investigate the VOC emissions after processing, and consequently provide basic guideline for the selection of processing parameters of particleboards to control the pollutants. 1m3 environmental chamber and portable VOC monitor were used for VOC sampling and analysis. The results showed that these factors had significant impact on VOC concentrations.

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Kilgour, Delaney B., Gordon A. Novak, Megan S. Claflin, Brian M. Lerner, and Timothy H. Bertram. "Production of oxygenated volatile organic compounds from the ozonolysis of coastal seawater." Atmospheric Chemistry and Physics 24, no. 6 (2024): 3729–42. http://dx.doi.org/10.5194/acp-24-3729-2024.

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Abstract. Dry deposition of ozone (O3) to the ocean surface and the ozonolysis of organics in the sea surface microlayer (SSML) are potential sources of volatile organic compounds (VOCs) to the marine atmosphere. We use a gas chromatography system coupled to a Vocus proton-transfer-reaction time-of-flight mass spectrometer to determine the chemical composition and product yield of select VOCs formed from ozonolysis of coastal seawater collected from Scripps Pier in La Jolla, California. Laboratory-derived results are interpreted in the context of direct VOC vertical flux measurements made at S

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Nekrasova, Larisa P. "Detection of volatile organic compounds in soils (literature review)." Hygiene and sanitation 103, no. 10 (2024): 1149–54. http://dx.doi.org/10.47470/0016-9900-2024-103-10-1149-1154.

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Volatile organic compounds (VOC) are major environmental pollutants. Due to their high mobility, they penetrate into all environmental objects, pose an environmental threat and health risks. Getting into the soil, they deteriorate its quality. VOC content requires reliable control. There is presented a review of the literature, including methods of the US Environmental Protection Agency, and regulatory and methodological documents of the Russian Federation regulating methods of selection, storage, preparation and analysis of soil samples for VOC content. The dominant place among methods for mo

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Acton, W. Joe F., Zhonghui Huang, Brian Davison, et al. "Surface–atmosphere fluxes of volatile organic compounds in Beijing." Atmospheric Chemistry and Physics 20, no. 23 (2020): 15101–25. http://dx.doi.org/10.5194/acp-20-15101-2020.

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Abstract. Mixing ratios of volatile organic compounds (VOCs) were recorded in two field campaigns in central Beijing as part of the Air Pollution and Human Health in a Chinese Megacity (APHH) project. These data were used to calculate, for the first time in Beijing, the surface–atmosphere fluxes of VOCs using eddy covariance, giving a top-down estimation of VOC emissions from a central area of the city. The results were then used to evaluate the accuracy of the Multi-resolution Emission Inventory for China (MEIC). The APHH winter and summer campaigns took place in November and December 2016 an

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Tirillini, Bruno, and Filippo Maggi. "Volatile Organic Compounds of the Glandular Trichomes of Ocimum basilicum and Artifacts during the Distillation of the Leaves." Applied Sciences 11, no. 16 (2021): 7312. http://dx.doi.org/10.3390/app11167312.

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Focusing on volatile organic compounds (VOC) of Ocimum basilicum, this study aims to determine the chemical composition of VOC in secretory trichomes and compare it with that of essential oil obtained by hydrodistillation of leaves. The technique of extracting the content of glandular trichomes refers to the microneedle shuttle analysis. Hydrodistillation of fresh leaves was done with a Clevenger distiller (EO). The chemical compositions were determined by GC/FID and GC/MS. The head of the capitate trichomes does not contain volatile compounds. Fifty volatile compounds were detected in the EO,

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Suschka, Jan, Bozena Mrowiec, and Grazyna Kuszmider. "Volatile organic compounds (VOC) at some sewage treatment plants in Poland." Water Science and Technology 33, no. 12 (1996): 273–76. http://dx.doi.org/10.2166/wst.1996.0348.

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Volatile organic compounds have been measured at two relatively large sewage treatment plants. Quantitative estimation of benzene, toluene, m.p-xylene, o-xylene and isopropylbenzene have been made for raw sewage, sewage after primary treatment and after biological treatment. Also measurements of 14 different volatile organic compounds in the ambient air, close to screens, and the air above (0.5 m above) aeration tanks have been done. Tests on air stripping of added volatile organic compounds to clean water have been performed in parallel in the laboratory. The removal of examined VOCs in full

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Haiek, Maisa, Vladislav Dvoyris, Yoav Y. Broza, Hossam Haick, Ervin Weiss, and Yael Houri-Haddad. "Bacterial Volatile Organic Compounds as Potential Caries and Periodontitis Disease Biomarkers." International Journal of Molecular Sciences 26, no. 8 (2025): 3591. https://doi.org/10.3390/ijms26083591.

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Oral diseases represent a significant global health and economic burden, necessitating the development of effective diagnostic tools. This study investigates the volatile organic compound (VOC) profiles of bacteria associated with dental caries and periodontal disease to explore their potential as diagnostic biomarkers. Four microbial strains—Streptococcus mutans (700610), Streptococcus sanguis (NCO 2863), Porphyromonas gingivalis (ATCC 33277), and Fusobacterium nucleatum (PK1594)—were cultured (N = 24), alongside intraoral samples (N = 60), from individuals with common oral diseases. Headspac

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Hu, Yuanyuan, Ge Liu, Chaomin Sun, and Shimei Wu. "Volatile Organic Compounds Produced by a Deep-Sea Bacterium Efficiently Inhibit the Growth of Pseudomonas aeruginosa PAO1." Marine Drugs 22, no. 5 (2024): 233. http://dx.doi.org/10.3390/md22050233.

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The deep-sea bacterium Spongiibacter nanhainus CSC3.9 has significant inhibitory effects on agricultural pathogenic fungi and human pathogenic bacteria, especially Pseudomonas aeruginosa, the notorious multidrug-resistant pathogen affecting human public health. We demonstrate that the corresponding antibacterial agents against P. aeruginosa PAO1 are volatile organic compounds (VOCs, namely VOC-3.9). Our findings show that VOC-3.9 leads to the abnormal cell division of P. aeruginosa PAO1 by disordering the expression of several essential division proteins associated with septal peptidoglycan sy

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Mohd Tombel, Nor Syahira, Hasan Firdaus Mohd Zaki, and Hanna Farihin Mohd Fadglullah. "FEATURE EXTRACTION AND SUPERVISED LEARNING FOR VOLATILE ORGANIC COMPOUNDS GAS RECOGNITION." IIUM Engineering Journal 24, no. 2 (2023): 407–20. http://dx.doi.org/10.31436/iiumej.v24i2.2832.

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The emergence of advanced technologies, particularly in the field of artificial intelligence (AI), has sparked significant interest in exploring their potential benefits for various industries, including healthcare. In the medical sector, the utilization of sensing systems has proven valuable for diagnosing pulmonary diseases by detecting volatile organic compounds (VOCs) in exhaled breath. However, the identification of the most informative and discriminating features from VOC sensor arrays remains an unresolved challenge, essential for achieving robust VOC class recognition. This research pr

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Salman, Dahlia, Wadah Ibrahim, Amisha Kanabar, et al. "The variability of volatile organic compounds in the indoor air of clinical environments." Journal of Breath Research 16, no. 1 (2021): 016005. http://dx.doi.org/10.1088/1752-7163/ac3565.

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Abstract The development of clinical breath-analysis is confounded by the variability of background volatile organic compounds (VOCs). Reliable interpretation of clinical breath-analysis at individual, and cohort levels requires characterisation of clinical-VOC levels and exposures. Active-sampling with thermal-desorption/gas chromatography-mass spectrometry recorded and evaluated VOC concentrations in 245 samples of indoor air from three sites in a large National Health Service (NHS) provider trust in the UK over 27 months. Data deconvolution, alignment and clustering isolated 7344 features a

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Ciccioli, P., A. Cecinato, E. Brancaleoni, M. Frattoni, F. Bruner, and M. Maione. "Occurrence of Oxygenated Volatile Organic Compounds (VOC) in Antarctica." International Journal of Environmental Analytical Chemistry 62, no. 3 (1996): 245–53. http://dx.doi.org/10.1080/03067319608028137.

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Molnár, Ágnes. "Estimation of volatile organic compounds (VOC) emission for Hungary." Atmospheric Environment. Part A. General Topics 24, no. 11 (1990): 2855–60. http://dx.doi.org/10.1016/0960-1686(90)90173-k.

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Hadi, Kasnawi Al, Arif Budianto, Sabila Alhadawiah, Karina Alma Fidya, and Satutik Rahayu. "VOCs (Volatile Organic Compounds) Concentration Measurement in Human-Exhaled Breath - A Preliminary Study." JURNAL SAINS TEKNOLOGI & LINGKUNGAN 10, no. 4 (2024): 618–22. https://doi.org/10.29303/jstl.v10i4.728.

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VOC is a group of organic compounds that easily evaporate into the atmosphere and have various impacts on human health and the environment. Human exhaled breath and VOC is related to each other. The concentration of VOC differs from an abnormal condition to other abnormalities. However, there is limited information or study about VOC concentration in human exhaled breath. In line with this, this study aims to develop a VOC meter or a measurement system using a CCS811 sensor for human exhaled breath. This study used a CCS811 sensor, a microcontroller, and a suction pump installed inside a senso

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Álvarez-García, Samuel, Sara Mayo-Prieto, Guzmán Carro-Huerga, et al. "Volatile Organic Compound Chamber: A Novel Technology for Microbiological Volatile Interaction Assays." Journal of Fungi 7, no. 4 (2021): 248. http://dx.doi.org/10.3390/jof7040248.

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The interest in the study of microbiological interactions mediated by volatile organic compounds (VOCs) has steadily increased in the last few years. Nevertheless, most assays still rely on the use of non-specific materials. We present a new tool, the volatile organic compound chamber (VOC chamber), specifically designed to perform these experiments. The novel devices were tested using four Trichoderma strains against Fusarium oxysporum and Rhizoctonia solani. We demonstrate that VOC chambers provide higher sensitivity and selectivity between treatments and higher homogeneity of results than t

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Agho, C. A., E. Runno-Paurson, T. Tähtjärv, E. Kaurilind, and Ü. Niinemets. "Variation in Leaf Volatile Emissions in Potato (Solanum tuberosum) Cultivars with Different Late Blight Resistance." Plants 12, no. 11 (2023): 2100. http://dx.doi.org/10.3390/plants12112100.

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Volatile organic compounds (VOCs) play key roles in plant abiotic and biotic stress resistance, but even for widespread crops, there is limited information on variations in the magnitude and composition of constitutive VOC emissions among cultivars with varying stress resistance. The foliage VOC emissions from nine local and commercial potato cultivars (Alouette, Sarme, Kuras, Ando, Anti, Jõgeva Kollane, Teele, 1681-11, and Reet) with medium to late maturities and varying Phytophthora infestans (the causative agent of late blight disease) resistance backgrounds were analyzed to gain an insight

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Webber, M. D., J. D. Goodin, P. J. A. Fowlie, R. L. Hong-You, and J. Legault. "Persistence of Volatile Organic Compounds in Sludge Treated Soils." Water Quality Research Journal 32, no. 3 (1997): 579–98. http://dx.doi.org/10.2166/wqrj.1997.034.

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Abstract Laboratory incubation studies were conducted to assess the persistence of ten volatile organic compounds (VOCs) in seven soils treated with 3% dw of anaer-obically digested municipal sludge. The VOCs were probable municipal sludge contaminants and the soils represented wide ranges of constituents likely to sorb organic compounds, e.g., organic carbon (1.3 to 12%) and clay (7 to 50%). The VOCs were spiked into soils at 50 mg kg-1 dw of soil, except for trichloro-ethylene and chloroform which were at 2.5 mg kg-1 dw. Three general patterns of VOC losses from soils were identified: (1) co

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Zhou, You, and Bing Yan. "A responsive MOF nanocomposite for decoding volatile organic compounds." Chemical Communications 52, no. 11 (2016): 2265–68. http://dx.doi.org/10.1039/c5cc09029f.

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A molecular decoding platform, which recognizes aromatic VOCs with distinctly different 2D readouts, has been developed by a responsive luminescent MOF nanocomposite. The VOC recognition is based on an unprecedented dual-readout orthogonal identification scheme.

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Chiemchaisri, Wilai, Chettiyappan Visvanathan, and Shing Wu Jy. "Effects of trace volatile organic compounds on methane oxidation." Brazilian Archives of Biology and Technology 44, no. 2 (2001): 135–40. http://dx.doi.org/10.1590/s1516-89132001000200005.

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The effects of volatile organic compounds (VOCs) on methane oxidation in landfill cover soils were examined. The batch experiments were conducted using single and mixed VOCs, such as, dichloromethane (DCM), trichloroethylene (TCE), tetrachloroethylene (PCE), and benzene. The results from all combinations showed a decrease in methane oxidation rate with increase in VOC concentrations. Moreover, inhibition effects of TCE and DCM were found higher than benzene and PCE. The reduction of methane oxidation by benzene and PCE could be attributed to the toxicity effect, whereas TCE and DCM were found

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Fiorenza, Roberto. "Bimetallic Catalysts for Volatile Organic Compound Oxidation." Catalysts 10, no. 6 (2020): 661. http://dx.doi.org/10.3390/catal10060661.

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In recent years, the impending necessity to improve the quality of outdoor and indoor air has produced a constant increase of investigations in the methodologies to remove and/or to decrease the emission of volatile organic compounds (VOCs). Among the various strategies for VOC elimination, catalytic oxidation and recently photocatalytic oxidation are regarded as some of the most promising technologies for VOC total oxidation from urban and industrial waste streams. This work is focused on bimetallic supported catalysts, investigating systematically the progress and developments in the design

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el Manouni el Hassani, Sofia, Hendrik Niemarkt, Hager Said, et al. "Fecal Volatile Organic Compounds in Preterm Infants Are Influenced by Enteral Feeding Composition." Sensors 18, no. 9 (2018): 3037. http://dx.doi.org/10.3390/s18093037.

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Fecal volatile organic compound (VOC) analysis has shown great potential as a noninvasive diagnostic biomarker for a variety of diseases. Before clinical implementation, the factors influencing the outcome of VOC analysis need to be assessed. Recent studies found that the sampling conditions can influence the outcome of VOC analysis. However, the dietary influences remains unknown, especially in (preterm) infants. Therefore, we assessed the effects of feeding composition on fecal VOC patterns of preterm infants (born at <30 weeks gestation). Two subgroups were defined: (1) daily intake >

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Musyanovych, Anna, Christoph Grimmer, Ali Enis SADAK, et al. "Polymer Capsules with Volatile Organic Compounds as Reference Materials for Controlled Emission." ACS Applied Materials and Interfaces 16, no. 50 (2024): 69999−70009. https://doi.org/10.1021/acsami.4c12826.

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Encapsulation of volatile organic compounds (VOCs) that could evaporate at a defined rate is of immense interest for application in emission reference materials (ERMs). Polyurethane/polyurea microcapsules with various VOC active ingredients (limonene, pinene, and toluene) were successfully produced by interfacial polymerization with Shirasu porous glass membrane emulsification in a size range between 10 and 50 μm. The effect of surfactant, VOC, monomer(s) type, and ratio has a great effect on the formulation process and morphology of capsules. The type of VOC played a significant role in th

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Bitas, Vasileios, Hye-Seon Kim, Joan W. Bennett, and Seogchan Kang. "Sniffing on Microbes: Diverse Roles of Microbial Volatile Organic Compounds in Plant Health." Molecular Plant-Microbe Interactions® 26, no. 8 (2013): 835–43. http://dx.doi.org/10.1094/mpmi-10-12-0249-cr.

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Secreted proteins and metabolites play diverse and critical roles in organismal and organism–environment interactions. Volatile organic compounds (VOC) can travel far from the point of production through the atmosphere, porous soils, and liquid, making them ideal info-chemicals for mediating both short- and long-distance intercellular and organismal interactions. Critical ecological roles for animal- and plant-derived VOC in directing animal behaviors and for VOC as a language for plant-to-plant communication and regulators of various physiological processes have been well documented. Similarl

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Suresh, Karantothu, Chetna, Raj Kumar Mandal, Dasari Purna Prakash, Kakadi Akhil Dora, and J. M. Kavana. "The Role of Volatile Organic Compounds (VOCs) in Determining Seed Physiological Quality: A Review." International Journal of Environment and Climate Change 14, no. 9 (2024): 124–38. http://dx.doi.org/10.9734/ijecc/2024/v14i94398.

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Volatile organic compounds (VOCs) emitted by seeds serve as promising biomarkers for assessing seed vigor, viability, and deterioration during storage. This review synthesizes current knowledge on the types and chemical classes of VOCs released by seeds, factors affecting their emission, and methods for their collection and analysis. VOCs indicate seed aging, with increased emissions of alcohols, aldehydes, and ketones associated with deterioration processes like lipid peroxidation. Volatile organic compounds (VOCs) associated with seed deterioration include alcohols like ethanol, which can in

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Fillmore, Randolph. "Waterborne Resins for Direct-to-Metal Coatings." Materials Performance 47, no. 3 (2008): 44–45. https://doi.org/10.5006/mp2008_47_3-44.

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Industrial users and governmental bodies are seeking high-durability industrial coatings that emit low levels of volatile organic compounds (VDCs). The coming years will likely bring change from high VOC solvent-borne coatings to waterborne coatings with low VOC emissions. Water-based, low-VOC, highly durable coatings for metal are being produced.

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Malone, Shealyn C., David K. Weaver, Tim F. Seipel, et al. "Herbivore-induced volatile emissions are altered by soil legacy effects in cereal cropping systems." Plant and Soil 455, no. 1-2 (2020): 171–86. http://dx.doi.org/10.1007/s11104-020-04674-2.

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Abstract Aims (main purpose and research question) Soil properties, including microbial composition and nutrient availability, can influence the emissions of plant volatile organic compounds (VOCs) that serve as host-location cues for insect pests and their natural enemies. Agricultural practices have profound effects on soil properties, but how these influence crop VOCs remains largely unknown. The aim of this study was to investigate the effect of agricultural practices on constitutive and herbivore-induced VOC emissions by a major staple crop through soil legacy effects. Methods In a full f

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Peera, Asghar, and Vania Buzatto. "Sustainable Materials: The New Bottom Line in Paint and Coatings." CoatingsPro 15, no. 2 (2015): 24–26. https://doi.org/10.5006/cp2015_15_2-24.

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Jure, Pohleven, David Burnard Michael, and Kutnar Andreja. "Volatile organic compounds emitted from untreated and thermally modified wood - a review." Wood and fiber science 51, no. 3 (2019): 1–24. https://doi.org/10.22382/wfs-2019-023.

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Volatile organic compounds (VOCs) are a diverse group of compounds that can have a strong impact on indoor air quality.Wood and thermally modified wood emit VOCs, which are referred to as wood VOCs, and can elicit various negative or positive effects in different organisms, including humans. Wood is a complex multicomponent biopolymer with inherent variability, which is also reflected in the emissions of VOCs. Variability in wood VOC emissions has been attributed to endogenous and exogenous factors, such as wood species, type of wood sample, wood treatment, etc. Nevertheless, studies have repo

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Umarani, R., M. Bhaskaran, C. Vanitha, and M. Tilak. "Fingerprinting of volatile organic compounds for quick assessment of vigour status of seeds." Seed Science Research 30, no. 2 (2020): 112–21. http://dx.doi.org/10.1017/s0960258520000252.

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AbstractSeed is a fertilized mature ovule, which possesses an embryonic plant. When the dry, mature seeds are subjected to imbibition, they release a wide range of organic substances, which include low molecular weight carbonyl compounds (gases and volatiles) and water-soluble organic substances (enzymes and polysaccharides). The volatile organic compounds (VOCs) are molecules of low molecular weight (300 g mol−1) and high vapour pressure (0.01 kPa at 20°C) and include diverse chemical compounds. The nature and emission kinetics of volatiles produced from seeds vary, depending on the moisture

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Zhang, Ruishan, Zihao Wang, Qihua Hou, et al. "First-principles insights into the C₆N₇ monolayer as a highly efficient sensor and scavenger for the detection of selective volatile organic compounds." RSC Advances 13, no. 41 (2023): 28703–12. http://dx.doi.org/10.1039/d3ra05573f.

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Sun, Shi Jing, and Jun Shen. "Study on Reducing the Volatile Organic Compounds Emissions from Different Processing Particleboards." Advanced Materials Research 113-116 (June 2010): 1101–5. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.1101.

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The aim of this paper is to study on how to control VOC emissions from wood-based panel manufacturing. Total volatile organic compounds (TVOC) emissions from larch particleboard under different processing conditions were collected by an environmental chamber. VOC samples were prepared by desiccator, adsorbed by activated carbon, desorpted with Methylene dichloride and measured by GC/MS. The result showed that the optimal process parameters were single-layer structure, moisture content of 6%, density of 0.60 g•cm-3, thickness of 8mm, resin content of 7%, hot-pressing time of 4min.TVOC increased

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Rondanelli, Mariangela, Federica Perdoni, Vittoria Infantino, et al. "Volatile Organic Compounds as Biomarkers of Gastrointestinal Diseases and Nutritional Status." Journal of Analytical Methods in Chemistry 2019 (September 10, 2019): 1–14. http://dx.doi.org/10.1155/2019/7247802.

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Purpose. The purpose of this review was to identify the best solution for rapid and noninvasive diagnosis and long-term monitoring of patients affected by inflammatory gastrointestinal diseases, colon and gastric cancer, obesity in correlation to diet, and breast milk to evaluate exposure to VOCs in women and infants. Methods. This review included 20 previously published eligible studies. VOC analysis has allowed us to highlight differences in lifestyles, intestinal microbiota, and metabolism. New innovative methods have been described that allow the detection and quantification of a broad spe

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Saarikoski, Sanna, Heidi Hellén, Arnaud P. Praplan, et al. "Characterization of volatile organic compounds and submicron organic aerosol in a traffic environment." Atmospheric Chemistry and Physics 23, no. 5 (2023): 2963–82. http://dx.doi.org/10.5194/acp-23-2963-2023.

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Abstract. Urban air consists of a complex mixture of gaseous and particulate species from anthropogenic and biogenic sources that are further processed in the atmosphere. This study investigated the characteristics and sources of volatile organic compounds (VOCs) and submicron organic aerosol (OA) in a traffic environment in Helsinki, Finland, in late summer. The anthropogenic VOCs (aVOCs; aromatic hydrocarbons) and biogenic VOCs (bVOCs; terpenoids) relevant for secondary-organic-aerosol formation were analyzed with an online gas chromatograph mass spectrometer, whereas the composition and siz

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Pedrini, Alessandro, Angelo Maspero, Silvia Bracco, et al. "Synthesis, crystal structure, and optical properties of fluorinated poly(pyrazole) ligands and in silico assessment of their affinity for volatile organic compounds." New Journal of Chemistry 44, no. 16 (2020): 6443–55. http://dx.doi.org/10.1039/d0nj00259c.

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Increasing fluorination of an organic ligand forming porous coordination polymers results in enhanced affinity for volatile organic compounds (VOCs) without affecting the fluorescence properties, thus opening new perspectives for VOC sensing.

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Novitsky, E. G., P. O. Tokarev, Yu I. Matveeva, V. V. Volkov, and E. A. Grushevenko. "Capture and Recovery of Volatile Organic Compounds Vapors Using Membrane Technology." Membrany i membrannye tehnologii 14, no. 4 (2024): 249–62. http://dx.doi.org/10.31857/s2218117224040017.

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The problem of separation and recovery of volatile organic compounds (VOC) vapors is important both from the point of view of reducing the negative anthropogenic impact on the environment and from the point of view of resource conservation. The main classes of VOCs are, first of all, aliphatic, aromatic and oxygen-containing hydrocarbons. A significant source of VOC emissions of various natures are waste gas process flows (or off-gases) of petrochemical industries (polymerization processes, hydrotreating, isomerization, dehydrogenation, etc.). The capture and recovery of VOC vapors is implemen

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Pui, Wee Kong, Rozita Yusoff, and Mohamed Kheireddine Aroua. "A review on activated carbon adsorption for volatile organic compounds (VOCs)." Reviews in Chemical Engineering 35, no. 5 (2019): 649–68. http://dx.doi.org/10.1515/revce-2017-0057.

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Abstract A number of control methods have been adopted for the removal of hazardous volatile organic compounds (VOCs) from gas streams, particularly adsorption processes which are considered more prominent in terms of feasibility, effectiveness as well as cost competence compared to other methods. In this study, most of the activated-carbon-based adsorbents are critically reviewed in terms of their advantages and limitations for VOC gas adsorption. The choice of adsorbent and process parameters depends mainly on the type of VOC used, its chemical and structural properties, in addition to the a

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Wu, Shu Yun, Zeng Feng Yan, Jun Gang Dong, and Huan Huan Liu. "Research of the Distribution of Volatile Organic Compounds (VOC) in Print Shops in Xi’an." Applied Mechanics and Materials 209-211 (October 2012): 1560–65. http://dx.doi.org/10.4028/www.scientific.net/amm.209-211.1560.

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Volatile organic compounds (VOCs) are major constituents of the indoor air pollutants. The indoor air quality has caused wide concern for VOCs may affect human health in many ways. The VOCs in general rooms volatilize from building materials, furniture and so on. In print shops the print equipment and materials may produce a large amount of VOCs that may affect the health of the long-term print shop workers. The author has measured the VOC content and the air indexes in a seventy square-meter print shop in Xi’an with comprehensive functions, then, evaluated the pollution and proposed the preve

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Vargas, Victor, Marie-Cecile Chalbot, Robert O'Brien, et al. "The effect of anthropogenic volatile organic compound sources on ozone in Boise, Idaho." Environmental Chemistry 11, no. 4 (2014): 445. http://dx.doi.org/10.1071/en13150.

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Environmental context Volatile organic compounds are precursors of ozone, a pollutant with adverse environmental effects. It is important to determine the associations between the various sources of volatile organic compounds and ozone levels because emission controls are based on sources. We estimated the contributions of specific sources of volatile organic compounds on ozone levels using both measurements and statistical models, and found that traffic is the largest source even in events when wildfire smoke is present. Abstract Here, we present the application of a tiered approach to apport

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Kleeblatt, Juliane, Benjamin Stengel, Christian Radischat, et al. "Needle trap sampling thermal-desorption resonance enhanced multiphoton ionization time-of-flight mass spectrometry for analysis of marine diesel engine exhaust." Analytical Methods 7, no. 8 (2015): 3608–17. http://dx.doi.org/10.1039/c5ay00321k.

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Lim, M., and A. R. Lea-Langton. "Simulation of ozonolysis of volatile organic compounds: Effect on flue gas composition." IOP Conference Series: Materials Science and Engineering 1195, no. 1 (2021): 012012. http://dx.doi.org/10.1088/1757-899x/1195/1/012012.

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Abstract This study shows that the reaction of ozone with various volatile organic compounds (VOC) yields different flue gas composition in terms of the carbon dioxide, oxygen and moisture contents. Steam production and thermal output requirements from a combustion system (i.e., a boiler) may dictate the range of operating conditions, such as the air to fuel mass flow rates. To improve the combustion efficiency in these operating conditions, low temperature plasmas have been used to ionize air and generate ozone as an oxidant for ozonolysis with the VOC. Therefore, this study simulates the rea

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Zhang, Hong Hua, Shao Peng Wu, Ling Pang, Kim Jenkins, Man Yu, and Pei Qiang Cui. "Grey System Theoretical Analysis on the Influence of Volatile Organic Compounds Emission from Asphalt on its Performance." Advanced Materials Research 753-755 (August 2013): 481–85. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.481.

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Light components in the asphalt can volatilize under the circumstances of high temperature or long-term service process, leading to the deteriorating of the asphalt pavement. This paper tried to discuss the influences of volatile organic compounds (VOC) emission from the asphalt on physical properties in the high temperature (at 180) by grey system theory. Both Heat and Vacuum environment were monitored as the emission conditions and the emission temperature was 180°C, physical properties of asphalt, released and unreleased were analyzed. Basic tests, including mass change, chemical compositio

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Shammay, A., I. Evanson, and R. M. Stuetz. "A comparison of removal performance of volatile organic and sulfurous compounds between odour abatement systems." Water Science and Technology 77, no. 11 (2018): 2657–67. http://dx.doi.org/10.2166/wst.2018.223.

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Abstract Three types of odour abatement systems in sewer networks in Australia were studied for 18 months to determine the removals of different compounds. Six volatile sulfurous compounds and seven volatile organic compounds (VOCs) were further investigated. All types of odour abatement systems exhibited good removal of hydrogen sulfide with the biotrickling filters (BTFs) showing the highest consistent removal. Biofilters outperformed BTFs and activated carbon (AC) filters in the removal of dimethyl mono-, di- and tri-sulfide species at the low inlet concentrations typically found. AC filter

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Čech, Petr. "Influence of adhesive bonding on quantity of emissions VOCs." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 56, no. 4 (2008): 29–36. http://dx.doi.org/10.11118/actaun200856040029.

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The study deals with the influence of urea-formaldehyde glue and veneered bolstering on technological operation veneering on quantity of emission VOCs (volatile organic compounds).The so-called Volatile Organic Compounds (VOC) are among the largest pollution sources of both the internal and external environments.VOC is defined as emission of any organic compound or a mixture thereof, with the exception of methane, whereby the compound exerts the pressure of 0.01 kPa or more at the temperature of 20 °C (293.15 K) and reaches the corresponding volatility under the specific conditions of its use

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Murphy, J. G., D. E. Oram, and C. E. Reeves. "Measurements of volatile organic compounds over West Africa." Atmospheric Chemistry and Physics 10, no. 12 (2010): 5281–94. http://dx.doi.org/10.5194/acp-10-5281-2010.

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Abstract. In this paper we describe measurements of volatile organic compounds (VOC) made using a Proton Transfer Reaction Mass Spectrometer (PTR-MS) aboard the UK Facility for Atmospheric Airborne Measurements during the African Monsoon Multidisciplinary Analyses (AMMA) campaign. Observations were made during approximately 85 h of flying time between 17 July and 17 August 2006, above an area between 4° N and 18° N and 3° W and 4° E, encompassing ocean, mosaic forest, and the Sahel desert. High time resolution observations of counts at mass to charge (m/z) ratios of 42, 59, 69, 71, and 79 were

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