251
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Vesin A, Bouchoux G, Quivet E, Temime-Roussel B, Wortham H. Use of the HS-PTR-MS for online measurements of pyrethroids during indoor insecticide treatments. Anal Bioanal Chem 2012; 403:1907-21. [DOI: 10.1007/s00216-012-6003-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Accepted: 03/30/2012] [Indexed: 10/28/2022]
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252
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Knighton WB, Herndon SC, Franklin JF, Wood EC, Wormhoudt J, Brooks W, Fortner EC, Allen DT. Direct measurement of volatile organic compound emissions from industrial flares using real-time online techniques: Proton Transfer Reaction Mass Spectrometry and Tunable Infrared Laser Differential Absorption Spectroscopy. Ind Eng Chem Res 2012. [DOI: 10.1021/ie202695v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Scott C. Herndon
- Aerodyne Research, Inc., Billerica, Masssachusetts 01821, United States
| | - Jon F. Franklin
- Aerodyne Research, Inc., Billerica, Masssachusetts 01821, United States
| | - Ezra C. Wood
- Aerodyne Research, Inc., Billerica, Masssachusetts 01821, United States
| | - Jody Wormhoudt
- Aerodyne Research, Inc., Billerica, Masssachusetts 01821, United States
| | - William Brooks
- Aerodyne Research, Inc., Billerica, Masssachusetts 01821, United States
| | - Edward C. Fortner
- Aerodyne Research, Inc., Billerica, Masssachusetts 01821, United States
| | - David T. Allen
- Center for Energy and Environmental
Resources, University of Texas, Austin,
Texas 78712, United States
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253
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Langridge JM, Lack D, Brock CA, Bahreini R, Middlebrook AM, Neuman JA, Nowak JB, Perring AE, Schwarz JP, Spackman JR, Holloway JS, Pollack IB, Ryerson TB, Roberts JM, Warneke C, de Gouw JA, Trainer MK, Murphy DM. Evolution of aerosol properties impacting visibility and direct climate forcing in an ammonia-rich urban environment. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017116] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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254
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Gao SS, Sjostedt SJ, Sharma S, Hall SR, Ullmann K, Abbatt JPD. PTR-MS observations of photo-enhanced VOC release from Arctic and midlatitude snow. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017152] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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255
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Hansen MJ, Liu D, Guldberg LB, Feilberg A. Application of proton-transfer-reaction mass spectrometry to the assessment of odorant removal in a biological air cleaner for pig production. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:2599-2606. [PMID: 22304479 DOI: 10.1021/jf300182c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
There is an urgent need to develop odor reduction technologies for animal production facilities, and this requires a reliable measurement technique for estimating the removal of odorants. The purpose of the present experiment was to investigate the application of proton-transfer-reaction mass spectrometry (PTR-MS) for continuous measurements at a biofilter from SKOV A/S installed at a pig production facility. PTR-MS was able to handle the harsh conditions with high humidity and dust load in a biofilter and provide reliable data for the removal of odorants, including the highly odorous sulfur compounds. The biofilter removed 80-99% of carboxylic acids, aldehydes, ketones, phenols, and indoles and ca. 75% of hydrogen sulfide. However, only ~0-15% of methanethiol and dimethyl sulfide was removed. In conclusion, PTR-MS is a promising tool that can be used to improve the development of biological air cleaning and other odor reduction technologies toward significant odorants.
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Affiliation(s)
- Michael J Hansen
- Department of Engineering, Faculty of Science and Technology, Aarhus University, Tjele, Denmark.
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256
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Hansen MJ, Adamsen APS, Pedersen P, Feilberg A. Prediction of odor from pig production based on chemical odorants. JOURNAL OF ENVIRONMENTAL QUALITY 2012; 41:436-443. [PMID: 22370406 DOI: 10.2134/jeq2011.0253] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The present work was performed to investigate the use of odorant measurements for prediction of odor concentration in facilities with growing-finishing pigs and to analyze the odorant composition in facilities with different floor and ventilation systems. Air was sampled in Nalophan bags, odor concentrations were measured by dilution-to-threshold olfactometry, and concentrations of odorants were measured by proton-transfer-reaction mass spectrometry (PTR-MS). Olfactometry and chemical analyses were synchronized to take place at identical time intervals after sampling. A principal component analysis revealed that different facilities for growing-finishing pigs can be distinguished based on the odorants. Pit ventilation comprising a small amount of the total ventilation air (10-20%) in facilities with both room and pit ventilation can be used to concentrate odorants, whereas the room ventilation contains lower concentrations of most odorants. A partial least squares regression model demonstrated that prediction of the odor concentration based on odorants measured by PTR-MS is feasible. Hydrogen sulfide, methanethiol, trimethylamine, and 4-methylphenol were identified as the compounds having the largest influence on the prediction of odor concentration, whereas carboxylic acids had no significant influence. In conclusion, chemical measurement of odorants by PTR-MS is an alternative for expressing the odor concentration in facilities with growing-finishing pigs that can be used to increase the understanding of odor from different types of facilities and improve the development of odor reduction technologies.
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257
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Cappellin L, Karl T, Probst M, Ismailova O, Winkler PM, Soukoulis C, Aprea E, Märk TD, Gasperi F, Biasioli F. On quantitative determination of volatile organic compound concentrations using proton transfer reaction time-of-flight mass spectrometry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:2283-90. [PMID: 22296026 DOI: 10.1021/es203985t] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Proton transfer reaction - mass spectrometry (PTR-MS) has become a reference technique in environmental science allowing for VOC monitoring with low detection limits. The recent introduction of time-of-flight mass analyzer (PTR-ToF-MS) opens new horizons in terms of mass resolution, acquisition time, and mass range. A standard procedure to perform quantitative VOC measurements with PTR-ToF-MS is to calibrate the instrument using a standard gas. However, given the number of compounds that can be simultaneously monitored by PTR-ToF-MS, such a procedure could become impractical, especially when standards are not readily available. In the present work we show that, under particular conditions, VOC concentration determinations based only on theoretical predictions yield good accuracy. We investigate a range of humidity and operating conditions and show that theoretical VOC concentration estimations are accurate when the effect of water cluster ions is negligible. We also show that PTR-ToF-MS can successfully be used to estimate reaction rate coefficients between H(3)O(+) and VOC at PTR-MS working conditions and find good agreement with the corresponding nonthermal theoretical predictions. We provide a tabulation of theoretical rate coefficients for a number of relevant volatile organic compounds at various energetic conditions and test the approach in a laboratory study investigating the oxidation of alpha-pinene.
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Affiliation(s)
- Luca Cappellin
- IASMA Research and Innovation Centre, Fondazione Edmund Mach, Food Quality and Nutrition Area, Via E. Mach, 1, 38010, S. Michele a/A, Italy
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258
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Pollack IB, Ryerson TB, Trainer M, Parrish DD, Andrews AE, Atlas EL, Blake DR, Brown SS, Commane R, Daube BC, de Gouw JA, Dubé WP, Flynn J, Frost GJ, Gilman JB, Grossberg N, Holloway JS, Kofler J, Kort EA, Kuster WC, Lang PM, Lefer B, Lueb RA, Neuman JA, Nowak JB, Novelli PC, Peischl J, Perring AE, Roberts JM, Santoni G, Schwarz JP, Spackman JR, Wagner NL, Warneke C, Washenfelder RA, Wofsy SC, Xiang B. Airborne and ground-based observations of a weekend effect in ozone, precursors, and oxidation products in the California South Coast Air Basin. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd016772] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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259
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Li M, Biswas S, Nantz MH, Higashi RM, Fu XA. Preconcentration and Analysis of Trace Volatile Carbonyl Compounds. Anal Chem 2012; 84:1288-93. [DOI: 10.1021/ac2021757] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mingxiao Li
- Department
of Chemical Engineering, ‡Department of Chemistry, §Center for Regulatory and Environmental
Analytical Metabolomics (CREAM), and ∥James Graham Brown Cancer Center, University of Louisville, Louisville,
Kentucky 40292, United States
| | - Souvik Biswas
- Department
of Chemical Engineering, ‡Department of Chemistry, §Center for Regulatory and Environmental
Analytical Metabolomics (CREAM), and ∥James Graham Brown Cancer Center, University of Louisville, Louisville,
Kentucky 40292, United States
| | - Michael H. Nantz
- Department
of Chemical Engineering, ‡Department of Chemistry, §Center for Regulatory and Environmental
Analytical Metabolomics (CREAM), and ∥James Graham Brown Cancer Center, University of Louisville, Louisville,
Kentucky 40292, United States
| | - Richard M. Higashi
- Department
of Chemical Engineering, ‡Department of Chemistry, §Center for Regulatory and Environmental
Analytical Metabolomics (CREAM), and ∥James Graham Brown Cancer Center, University of Louisville, Louisville,
Kentucky 40292, United States
| | - Xiao-An Fu
- Department
of Chemical Engineering, ‡Department of Chemistry, §Center for Regulatory and Environmental
Analytical Metabolomics (CREAM), and ∥James Graham Brown Cancer Center, University of Louisville, Louisville,
Kentucky 40292, United States
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260
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Hansen MJ, Toda K, Obata T, Adamsen APS, Feilberg A. Evaluation of single column trapping/separation and chemiluminescence detection for measurement of methanethiol and dimethyl sulfide from pig production. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2012; 2012:489239. [PMID: 22997603 PMCID: PMC3444860 DOI: 10.1155/2012/489239] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Accepted: 07/10/2012] [Indexed: 05/03/2023]
Abstract
Reduced sulfur compounds are considered to be important odorants from pig production due to their low odor threshold values and low solubility in slurry. The objective of the present study was to investigate the use of a portable method with a single silica gel column for trapping/separation coupled with chemiluminescence detection (SCTS-CL) for measurement of methanethiol and dimethyl sulfide in sample air from pig production. Proton-transfer-reaction mass spectrometry (PTR-MS) was used to evaluate the trapping/separation. The silica gel column used for the SCTS-CL efficiently collected hydrogen sulfide, methanethiol and dimethyl sulfide. The measurement of methanethiol by SCTS-CL was clearly interfered by the high concentration of hydrogen sulfide found in pig production, and a removal of hydrogen sulfide was necessary to obtain reliable results. Air samples taken from a facility with growing-finishing pigs were analyzed by SCTS-CL, PTR-MS, and a gas chromatograph with sulfur chemiluminescence detection (GC-SCD) to evaluate the SCTS-CL. The difference between the concentrations of methanethiol and dimethyl sulfide measured with SCTS-CL, PTR-MS, and GC-SCD was below 10%. In conclusion, the SCTS-CL is a portable and low-cost alternative to the commercial methods that can be used to measure methanethiol and dimethyl sulfide in sample air from pig production.
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Affiliation(s)
- Michael Jørgen Hansen
- Department of Engineering, Science and Technology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
- *Michael Jørgen Hansen:
| | - Kei Toda
- Department of Chemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Tomoaki Obata
- Department of Chemistry, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Anders Peter S. Adamsen
- Department of Engineering, Science and Technology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
| | - Anders Feilberg
- Department of Engineering, Science and Technology, Aarhus University, Blichers Allé 20, 8830 Tjele, Denmark
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261
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van Dam NM, Samudrala D, Harren FJM, Cristescu SM. Real-time analysis of sulfur-containing volatiles in Brassica plants infested with root-feeding Delia radicum larvae using proton-transfer reaction mass spectrometry. AOB PLANTS 2012; 2012:pls021. [PMID: 22916330 PMCID: PMC3424660 DOI: 10.1093/aobpla/pls021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 07/13/2012] [Indexed: 05/08/2023]
Abstract
BACKGROUND AND AIMS Plants damaged by herbivores emit a variety of volatile organic compounds (VOCs). Here we used proton-transfer reaction mass spectrometry (PTR-MS) as a sensitive detection method for online analysis of herbivore-induced VOCs. Previously, it was found that Brassica nigra plants emit several sulfur-containing VOCs when attacked by cabbage root fly (Delia radicum) larvae with m/z 60 as a marker for the formation of allylisothiocyanate from the glucosinolate sinigrin. We tested the hypothesis that m/z 60 emission occurs only in plants with sinigrin in their roots. Additionally, we tested the hypothesis that methanethiol, dimethylsulfide and dimethyldisulfide are only emitted after larval infestation. METHODOLOGY Proton-transfer reaction mass spectrometry was used to track sulfur-containing VOCs from six different species of Brassica over time. The roots were either artificially damaged or infested with cabbage root fly larvae. Glucosinolate profiles of the roots were analysed using high-pressure liquid chromatography and compared with VOC emissions. PRINCIPAL RESULTS Brassica nigra, B. juncea and B. napus primarily emitted m/z 60 directly after artificial damage or root fly infestation. Sulfide and methanethiol emissions from B. nigra and B. juncea also increased after larval damage but much later (6-12 h after damage). Brassica rapa, B. oleracea and B. carinata principally emitted methanethiol after artificial and after larval damage. Brassica oleracea and B. carinata showed some increase in m/z 60 emission after larval damage. Comparison with root glucosinolate profiles revealed that sinigrin cannot be the only precursor for m/z 60. CONCLUSIONS The principal compound emitted after root damage is determined by the plant species, and not by damage type or root glucosinolate composition. Once determined, the principal compounds may be used as markers for identifying damaged or infested plants. Further analyses of plant enzymes involved in the breakdown of sulfur compounds is needed to reveal the origin of sulfur-containing VOCs from plants.
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Affiliation(s)
- Nicole M. van Dam
- Department of Ecogenomics, Institute for Water and Wetland Research (IWWR), Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
| | - Devasena Samudrala
- Life Science Trace Gas Facility,Institute of Molecules and Materials, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
| | - Frans J. M. Harren
- Life Science Trace Gas Facility,Institute of Molecules and Materials, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
| | - Simona M Cristescu
- Life Science Trace Gas Facility,Institute of Molecules and Materials, Radboud University Nijmegen, Nijmegen, 6525 AJ, The Netherlands
- Corresponding author's e-mail address:
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262
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Abstract
Analysis of plant volatile organic compounds (VOCs) and essential oils (EOs, collectively called the plant volatilome) is an invaluable technique in plant biology, as it provides the qualitative and quantitative composition of bioactive compounds. From a physiological standpoint, the plant volatilome is involved in some critical processes, namely plant-plant interactions, the signaling between symbiotic organisms, the attraction of pollinating insects, a range of biological activities in mammals, and as an endless source of novel drugs and drug leads. This chapter analyses and discusses the most advanced methods of analysis of the plant volatilome.
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263
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Amedro D, Miyazaki K, Parker A, Schoemaecker C, Fittschen C. Atmospheric and kinetic studies of OH and HO2 by the FAGE technique. J Environ Sci (China) 2012; 24:78-86. [PMID: 22783617 DOI: 10.1016/s1001-0742(11)60723-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A new FAGE setup has recently been built at the University of Lille, France. It permits the quantification of OH and HO2 in the atmosphere with a detection limit of 3 x 105 molecules/(cm3 x min) for OH and 1 x 10(6) molecules/(cm3 x min) for HO2. Its coupling to a photolysis cell enables the measurement of the total reactivity of the hydroxyl radical in ambient air and kinetic studies in laboratory. Two configurations have been considered: one with the photolysis cell at 90 degrees to the FAGE nozzle, the other on line with the FAGE nozzle. The two configurations have been tested and validated by measuring the well known rate constants of OH with CH4, C3H8 and CO. The advantages and drawbacks of each configuration have been evaluated. The "on line" configuration limits losses and permits measurements over a larger reactivity range but is affected by OH formation from the laser beam striking the FAGE nozzle, thus limiting the ability to carry out energy dependence studies which can, in contrast, be successfully performed in the 90 degrees configuration.
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Affiliation(s)
- D Amedro
- Laboratoire PC2A, Université de Lille 1- Bâtiment C11, 59655 Villeneuve d'Ascq, France
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264
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Saha CK, Feilberg A, Zhang G, Adamsen APS. Effects of airflow on odorants' emissions in a model pig house - A laboratory study using Proton-Transfer-Reaction Mass Spectrometry (PTR-MS). THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 410-411:161-171. [PMID: 21978617 DOI: 10.1016/j.scitotenv.2011.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2011] [Revised: 09/06/2011] [Accepted: 09/06/2011] [Indexed: 05/31/2023]
Abstract
Identification of different factors that affect emissions of gasses, including volatile organic compounds (VOCs) is necessary to develop emission abatement technology. The objectives of this research were to quantify and study temporal variation of gas emissions from a model pig house under varying ventilation rates. The used model was a 1:12.5 scale of a section of a commercial finishing pig house. The VOC concentrations at inlet, outlet, and slurry pit of the model space were measured using Proton-Transfer-Reaction Mass Spectrometry (PTR-MS). PTR-MS can measure the temporal variations of odor compounds' emission from the slurry pit in real time. The emissions of H(2)S and 14 VOCs were lower compared to real pig buildings except for ammonia, which indicated possible other sources of those compounds than the slurry in the slurry pit. The ventilation rate affected significantly on ammonia and trimethylamine emission (p<0.05). The hydrogen sulfide (H(2)S) emission was independent of the ventilation rate. VFAs' emission dependency on ventilation rate increased with the increase of carbon chain. Phenols, indoles and ketones showed the positive correlation with ventilation rate to some extent. Generally, compounds with high solubility (low Henry's constant) showed stronger correlation with ventilation rates than the compounds with high Henry's constant.
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Affiliation(s)
- Chayan Kumer Saha
- Department of Engineering, Aarhus University, Blichers Allè 20, 8830 Tjele, Denmark.
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265
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Sciare J, d'Argouges O, Sarda-Estève R, Gaimoz C, Dolgorouky C, Bonnaire N, Favez O, Bonsang B, Gros V. Large contribution of water-insoluble secondary organic aerosols in the region of Paris (France) during wintertime. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jd015756] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jean Sciare
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Odile d'Argouges
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Roland Sarda-Estève
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Cécile Gaimoz
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Cristina Dolgorouky
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Nicolas Bonnaire
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Olivier Favez
- Institut National de l'Environnement Industriel et des Risques; Verneuil-en-Halatte France
| | - Bernard Bonsang
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
| | - Valérie Gros
- Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ; Gif-sur-Yvette France
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266
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Long B, Long ZW, Wang YB, Tan XF, Han YH, Long CY, Qin SJ, Zhang WJ. Formic Acid Catalyzed Gas-Phase Reaction of H2O with SO3 and the Reverse Reaction: A Theoretical Study. Chemphyschem 2011; 13:323-9. [DOI: 10.1002/cphc.201100558] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 09/27/2011] [Indexed: 11/09/2022]
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267
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Chang RYW, Sjostedt SJ, Pierce JR, Papakyriakou TN, Scarratt MG, Michaud S, Levasseur M, Leaitch WR, Abbatt JPD. Relating atmospheric and oceanic DMS levels to particle nucleation events in the Canadian Arctic. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jd015926] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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268
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Gordon SM, Brinkman MC, Meng RQ, Anderson GM, Chuang JC, Kroeger RR, Reyes IL, Clark PI. Effect of Cigarette Menthol Content on Mainstream Smoke Emissions. Chem Res Toxicol 2011; 24:1744-53. [DOI: 10.1021/tx200285s] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. M. Gordon
- Tobacco Exposure Research Laboratory, Battelle Memorial Institute, 505 King Avenue, Columbus, Ohio 43201, United States
| | - M. C. Brinkman
- Tobacco Exposure Research Laboratory, Battelle Memorial Institute, 505 King Avenue, Columbus, Ohio 43201, United States
| | - R. Q. Meng
- Battelle Toxicology, Richland, Washington, United States
| | - G. M. Anderson
- Battelle Toxicology, Richland, Washington, United States
| | - J. C. Chuang
- Tobacco Exposure Research Laboratory, Battelle Memorial Institute, 505 King Avenue, Columbus, Ohio 43201, United States
| | - R. R. Kroeger
- Tobacco Exposure Research Laboratory, Battelle Memorial Institute, 505 King Avenue, Columbus, Ohio 43201, United States
| | - I. L. Reyes
- Tobacco Exposure Research Laboratory, Battelle Memorial Institute, 505 King Avenue, Columbus, Ohio 43201, United States
| | - P. I. Clark
- University of Maryland College Park, Maryland, United States
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269
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Feilberg Tavs Nyord A, Hansen MN, Lindholst S. Chemical evaluation of odor reduction by soil injection of animal manure. JOURNAL OF ENVIRONMENTAL QUALITY 2011; 40:1674-1682. [PMID: 21869529 DOI: 10.2134/jeq2010.0499] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Field application of animal manure is a major cause of odor nuisance in the local environment. Therefore, there is a need for methods for measuring the effect of technologies for reducing odor after manure application. In this work, chemical methods were used to identify key odorants from field application of pig manure based on experiments with surface application by trailing hoses and soil injection. Results from three consecutive years of field trials with full-scale equipment are reported. Methods applied were: membrane inlet mass spectrometry (MIMS), proton-transfer-reaction mass spectrometry (PTR-MS), gold-film hydrogen sulfide (H₂S) detection, all performed on site, and thermal desorption gas chromatography with mass spectrometry (TD-GC/MS) based on laboratory analyses of field samples. Samples were collected from a static flux chamber often used for obtaining samples for dynamic olfactometry. While all methods were capable of detecting relevant odorants, PTR-MS gave the most comprehensive results. Based on odor threshold values, 4-methylphenol, H₂S, and methanethiol are suggested as key odorants. Significant odorant reductions by soil injection were consistently observed in all trials. The flux chamber technique was demonstrated to be associated with critical errors due to compound instabilities in the chamber. This was most apparent for H₂S, on a time scale of a few minutes, and on a longer time scale for methanethiol.
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270
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Arancibia C, Jublot L, Costell E, Bayarri S. Flavor release and sensory characteristics of o/w emulsions. Influence of composition, microstructure and rheological behavior. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.04.049] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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271
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Biasioli F, Gasperi F, Yeretzian C, Märk TD. PTR-MS monitoring of VOCs and BVOCs in food science and technology. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.03.009] [Citation(s) in RCA: 150] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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272
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Hansen MJ, Adamsen APS, Feilberg A, Jonassen KEN. Stability of odorants from pig production in sampling bags for olfactometry. JOURNAL OF ENVIRONMENTAL QUALITY 2011; 40:1096-1102. [PMID: 21712578 DOI: 10.2134/jeq2010.0497] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Odor from pig production facilities is typically measured with olfactometry, whereby odor samples are collected in sampling bags and assessed by human panelists within 30 h. In the present study, the storage stability of odorants in two types of sampling bags that are often used for olfactometry was investigated. The bags were made of Tedlar or Nalophan. In a field experiment, humid and dried air samples were collected from a pig production facility with growing-finishing pigs and analyzed with a gas chromatograph with an amperometric sulfur detector at 4, 8, 12, 28, 52, and 76 h after sampling. In a laboratory experiment, the bags were filled with a humid gas mixture containing carboxylic acids, phenols, indoles, and sulfur compounds and analyzed with proton-transfer-reaction mass spectrometry after 0, 4, 8, 12, and 24 h. The results demonstrated that the concentrations of carboxylic acids, phenols, and indoles decreased by 50 to >99% during the 24 h of storage in Tedlar and Nalophan bags. The concentration of hydrogen sulfide decreased by approximately 30% during the 24 h of storage in Nalophan bags, whereas in Tedlar bags the concentration of sulfur compounds decreased by <5%. In conclusion, the concentrations of odorants in air samples from pig production facilities significantly decrease during storage in Tedlar and Nalophan bags, and the composition changes toward a higher relative presence of sulfur compounds. This can result in underestimation of odor emissions from pig production facilities and of the effect of odor reduction technologies.
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Affiliation(s)
- Michael J Hansen
- Department of Biosystems Engineering, Aarhus University, Tjele, Denmark.
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273
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Smith D, Španěl P. Direct, rapid quantitative analyses of BVOCs using SIFT-MS and PTR-MS obviating sample collection. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.05.001] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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274
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Wang Y, Shen C, Li J, Wang H, Wang H, Jiang H, Chu Y. Thermal desorption extraction proton transfer reaction mass spectrometer (TDE-PTR-MS) for rapid determination of residual solvent and sterilant in disposable medical devices. J Pharm Biomed Anal 2011; 55:1213-7. [DOI: 10.1016/j.jpba.2011.03.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Revised: 02/28/2011] [Accepted: 03/02/2011] [Indexed: 11/25/2022]
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275
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Dummer J, Storer M, Swanney M, McEwan M, Scott-Thomas A, Bhandari S, Chambers S, Dweik R, Epton M. Analysis of biogenic volatile organic compounds in human health and disease. Trends Analyt Chem 2011. [DOI: 10.1016/j.trac.2011.03.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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276
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Guidolotti G, Calfapietra C, Loreto F. The relationship between isoprene emission, CO(2) assimilation and water use efficiency across a range of poplar genotypes. PHYSIOLOGIA PLANTARUM 2011; 142:297-304. [PMID: 21361963 DOI: 10.1111/j.1399-3054.2011.01463.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Poplars (Populus sp.) are among the strongest isoprene (Iso)-emitting plants. Ten poplar genotypes belonging to four different species were grown under the same environmental conditions in a common garden experiment, to study the influence of the genetic variability on Iso emission and on the relationship between Iso and photosynthesis. Photosynthesis ranged from 13 to 20 µmol CO(2) m(-2) s(-1) , whereas Iso emission ranged from 18.2 to 45.2 nmol m(-2) s(-1) . There was no clear association between Iso emission and photosynthesis. In most genotypes, photosynthetic capacity developed earlier than Iso emission capacity. The emission of Iso was inversely correlated with the intercellular CO(2) concentration (C(i) ) and positively correlated with instantaneous water use efficiency. It is speculated that, by regulating C(i) , stomatal opening also indirectly controls Iso emission in poplars. A positive linear correlation between the fraction of recently assimilated carbon emitted as Iso and Iso emission rate was found. The slope of this relationship indicated that each nanomole of Iso emitted requires a fixed fraction of photosynthetic carbon regardless of the intra- and interspecific variability in the Populus genus, and of leaf ontogeny. A comparison with data from recent studies showed that the slope of this relationship increases in drought-stressed leaves. However, this might be explained by an increasing contribution of carbon sources for Iso biosynthesis from stored photosynthates. If this is true, then the amount of carbon directly shunted from photosynthesis into Iso is constant in all poplars and is not influenced by abiotic stresses.
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Affiliation(s)
- Gabriele Guidolotti
- Institute of Agro-Environmental & Forest Biology (IBAF), National Research Council (CNR), Monterotondo Scalo (Roma), Italy
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277
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Xu Q, Zhang Y, Mo J, Li X. Indoor formaldehyde removal by thermal catalyst: kinetic characteristics, key parameters, and temperature influence. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:5754-5760. [PMID: 21667968 DOI: 10.1021/es2009902] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Thermal catalytic oxidation (TCO) technology can continuously degrade formaldehyde at room temperature without added energy. However, there is very little knowledge on the TCO kinetic reaction mechanism, which is necessary in developing such air cleaners and in comparison with other air cleaning techniques. This paper addresses the problem of a novel TCO catalyst, Pt/MnO(x)-CeO(2). The experiments measuring the outlet concentrations of formaldehyde and other possible byproducts were conducted at temperatures of 25, 40, 60, 100, and 180 °C and at a series of inlet formaldehyde concentrations (280-3000 ppb). To measure the concentrations precisely and real timely, proton transfer reaction-mass spectrometry (PTR-MS) was used. We found the following from the experimental results: (1) no byproducts were detected; (2) the bimolecular L-H kinetic model best described the catalytic reaction rate; (3) the activation energy of the oxidation was about 25.8 kJ mol(-1); (4) TCO is most energy efficient at room temperature without auxiliary heating; (5) compared with photocatalytic oxidation (PCO) which needs ultraviolet light radiation, the reaction area of TCO can be much larger for a given volume so that TCO can perform much better not only in formaldehyde removal efficiency but also in energy saving.
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Affiliation(s)
- Qiujian Xu
- Department of Building Science, Tsinghua University, Beijing 100084, PR China
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278
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279
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Phase-resolved real-time breath analysis during exercise by means of smart processing of PTR-MS data. Anal Bioanal Chem 2011; 401:2079-91. [PMID: 21706328 DOI: 10.1007/s00216-011-5173-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 05/30/2011] [Accepted: 06/08/2011] [Indexed: 10/18/2022]
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280
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Long B, Tan XF, Long ZW, Wang YB, Ren DS, Zhang WJ. Theoretical Studies on Reactions of the Stabilized H2COO with HO2 and the HO2···H2O Complex. J Phys Chem A 2011; 115:6559-67. [DOI: 10.1021/jp200729q] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Bo Long
- College of Computer and Information Engineering, Guizhou University for Nationalities, Guiyang, China 550025
| | - Xing-feng Tan
- College of Photo-Electronics, Chongqing University of Posts and Telecommunications, Chongqing, China 400065
| | | | | | - Da-sen Ren
- College of Computer and Information Engineering, Guizhou University for Nationalities, Guiyang, China 550025
| | - Wei-jun Zhang
- Laboratory of Environment Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, China 230031
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281
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Toscano P, Gioli B, Dugheri S, Salvini A, Matese A, Bonacchi A, Zaldei A, Cupelli V, Miglietta F. Locating industrial VOC sources with aircraft observations. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2011; 159:1174-1182. [PMID: 21376441 DOI: 10.1016/j.envpol.2011.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 01/25/2011] [Accepted: 02/02/2011] [Indexed: 05/30/2023]
Abstract
Observation and characterization of environmental pollution, focussing on Volatile Organic Compounds (VOCs), in a high-risk industrial area, are particularly important in order to provide indications on a safe level of exposure, indicate eventual priorities and advise on policy interventions. The aim of this study is to use the Solid Phase Micro Extraction (SPME) method to measure VOCs, directly coupled with atmospheric measurements taken on a small aircraft environmental platform, to evaluate and locate the presence of VOC emission sources in the Marghera industrial area. Lab analysis of collected SPME fibres and subsequent analysis of mass spectrum and chromatograms in Scan Mode allowed the detection of a wide range of VOCs. The combination of this information during the monitoring campaign allowed a model (Gaussian Plume) to be implemented that estimates the localization of emission sources on the ground.
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Affiliation(s)
- P Toscano
- Institute for Biometeorology (IBIMET-CNR), Via G. Caproni 8, 50145 Firenze, Italy.
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282
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Abstract
The topic of ambient gas analysis has been rapidly developed in the last few years with the evolution of the exciting new techniques such as DESI, DART and EESI. The essential feature of all is that analysis of trace gases can be accomplished either in the gas phase or those released from surfaces, crucially avoiding sample collection or modification. In this regard, selected ion flow tube mass spectrometry, SIFT-MS, also performs ambient analyses both accurately and rapidly. In this focused review we describe the underlying ion chemistry underpinning SIFT-MS through a discourse on the reactions of different classes of organic and inorganic molecules with H(3)O(+), NO(+) and O(2)(+)˙ studied using the SIFT technique. Rate coefficients and ion products of these reactions facilitate absolute SIFT-MS analyses and can also be useful for the interpretation of data obtained by the other ambient analysis methods mentioned above. The essential physics and flow dynamics of SIFT-MS are described that, together with the reaction kinetics, allow SIFT-MS to perform absolute ambient analyses of trace compounds in humid atmospheric air, exhaled breath and the headspace of aqueous liquids. Several areas of research that, through pilot experiments, are seen to benefit from ambient gas analysis using SIFT-MS are briefly reviewed. Special attention is given to exhaled breath and urine headspace analysis directed towards clinical diagnosis and therapeutic monitoring, and some other areas researched using SIFT-MS are summarised. Finally, extensions to current areas of application and indications of other directions in which SIFT-MS can be exploited for ambient analysis are alluded to.
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Affiliation(s)
- David Smith
- Institute for Science and Technology in Medicine, School of Medicine, Keele University, Hartshill, Stoke-on-Trent, UK
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283
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Rimetz-Planchon J, Dhooghe F, Schoon N, Vanhaecke F, Amelynck C. Chemical ionization by [NO]+ and subsequent collision-induced dissociation for the selective on-line detection of monoterpenes and linalool. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:647-654. [PMID: 21294204 DOI: 10.1002/rcm.4901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Existing on-line Chemical Ionization Mass Spectrometry (CIMS) techniques for quantification of atmospheric trace gases, such as Biogenic Volatile Organic Compounds (BVOCs), suffer from difficulty in discriminating between isomeric (and more generally isobaric) compounds. Selective detection of these compounds, however, is important because they can affect atmospheric chemistry in different ways, depending on their chemical structure. In this work, Flowing Afterglow Tandem Mass Spectrometry (FATMS) was used to investigate the feasibility of the selective detection of a series of monoterpenes, an oxygenated monoterpene (linalool) and a sesquiterpene (β-caryophyllene). Ions at m/z 137 from [H(3)O](+) chemical ionization of α-pinene, linalool and β-caryophyllene have been subjected to Collision-Induced Dissociation (CID) with Ar in the collision cell of a tandem mass spectrometer at center-of-mass energies ranging between 0 and 8 eV. Similar fragmentation patterns were obtained, demonstrating that this method is not suited for the selective detection of these compounds. However, CID of the ions at m/z 136 produced via [NO](+) chemical ionization of a series of monoterpenes has revealed promising results. Some tracer-product ions for individual compounds or groups of compounds were found, which can be considered as a step forward towards selective on-line monitoring of BVOCs with CIMS techniques.
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284
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Paulot F, Wunch D, Crounse JD, Toon GC, Millet DB, DeCarlo PF, Vigouroux C, Deutscher NM, González Abad G, Notholt J, Warneke T, Hannigan JW, Warneke C, de Gouw JA, Dunlea EJ, De Mazière M, Griffith DWT, Bernath P, Jimenez JL, Wennberg PO. Importance of secondary sources in the atmospheric budgets of formic and acetic acids. ATMOSPHERIC CHEMISTRY AND PHYSICS 2011; 11:1989-2013. [PMID: 33758586 PMCID: PMC7983864 DOI: 10.5194/acp-11-1989-2011] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We present a detailed budget of formic and acetic acids, two of the most abundant trace gases in the atmosphere. Our bottom-up estimate of the global source of formic and acetic acids are ∼1200 and ∼1400Gmolyr-1, dominated by photochemical oxidation of biogenic volatile organic compounds, in particular isoprene. Their sinks are dominated by wet and dry deposition. We use the GEOS-Chem chemical transport model to evaluate this budget against an extensive suite of measurements from ground, ship and satellite-based Fourier transform spectrometers, as well as from several aircraft campaigns over North America. The model captures the seasonality of formic and acetic acids well but generally underestimates their concentration, particularly in the Northern midlatitudes. We infer that the source of both carboxylic acids may be up to 50% greater than our estimate and report evidence for a long-lived missing secondary source of carboxylic acids that may be associated with the aging of organic aerosols. Vertical profiles of formic acid in the upper troposphere support a negative temperature dependence of the reaction between formic acid and the hydroxyl radical as suggested by several theoretical studies.
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Affiliation(s)
- F. Paulot
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, California, USA
| | - D. Wunch
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, California, USA
| | - J. D. Crounse
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, USA
| | - G. C. Toon
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - D. B. Millet
- University of Minnesota, Department of Soil, Water and Climate, St. Paul, Minnesota, USA
| | - P. F. DeCarlo
- Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Colorado, USA
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
| | - C. Vigouroux
- Belgian Institute for Space Aeronomy, Brussels, Belgium
| | - N. M. Deutscher
- School of Chemistry, University of Wollongong, Wollongong, Australia
| | | | - J. Notholt
- Institute of Environmental Physics, Bremen, Germany
| | - T. Warneke
- Institute of Environmental Physics, Bremen, Germany
| | - J. W. Hannigan
- National Center for Atmospheric Research, Boulder, Colorado, USA
| | - C. Warneke
- Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USA
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
| | - J. A. de Gouw
- Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USA
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
| | - E. J. Dunlea
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, USA
| | - M. De Mazière
- Belgian Institute for Space Aeronomy, Brussels, Belgium
| | - D. W. T. Griffith
- School of Chemistry, University of Wollongong, Wollongong, Australia
| | - P. Bernath
- Department of Chemistry, University of York, York, UK
| | - J. L. Jimenez
- Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado, USA
| | - P. O. Wennberg
- Division of Engineering and Applied Sciences, California Institute of Technology, Pasadena, California, USA
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285
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Cappellin L, Biasioli F, Schuhfried E, Soukoulis C, Märk TD, Gasperi F. Extending the dynamic range of proton transfer reaction time-of-flight mass spectrometers by a novel dead time correction. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:179-183. [PMID: 21154901 DOI: 10.1002/rcm.4819] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Proton transfer reaction time-of-flight mass spectrometry (PTR-TOF-MS) allows for very fast simultaneous monitoring of volatile organic compounds (VOCs) in complex environments. In several applications, food science and food technology in particular, peaks with very different intensities are present in a single spectrum. For VOCs, the concentrations range from the sub-ppt all the way up to the ppm level. Thus, a large dynamic range is necessary. In particular, high intensity peaks are a problem because for them the linear dependency of the detector signal on VOC concentration is distorted. In this paper we present, test with real data, and discuss a novel method which extends the linearity of PTR-TOF-MS for high intensity peaks far beyond the limit allowed by the usual analytical correction methods such as the so-called Poisson correction. Usually, raw data can be used directly without corrections with an intensity of up to about 0.1 ions/pulse, and the Poisson correction allows the use of peaks with intensities of a few ions/pulse. Our method further extends the linear range by at least one order of magnitude. Although this work originated from the necessity to extend the dynamic range of PTR-TOF-MS instruments in agro-industrial applications, it is by no means limited to this area, and can be implemented wherever dead time corrections are an issue.
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Affiliation(s)
- Luca Cappellin
- IASMA Research and Innovation Centre, Fondazione Edmund Mach, Food Quality and Nutrition Area, Via E. Mach 1, 38010 S. Michele a/A, Italy
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286
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Influence of olive (cv Grignano) fruit ripening and oil extraction under different nitrogen regimes on volatile organic compound emissions studied by PTR-MS technique. Anal Bioanal Chem 2011; 399:2571-82. [DOI: 10.1007/s00216-010-4636-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 12/08/2010] [Accepted: 12/21/2010] [Indexed: 10/18/2022]
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287
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288
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Tian K, Hu D, Hu R, Wang S, Li S, Li Y, Yang G. Multiple fluorescence ΔCIE and ΔRGB codes for sensing volatile organic compounds with a wide range of responses. Chem Commun (Camb) 2011; 47:10052-4. [DOI: 10.1039/c1cc13056k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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289
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Tison JL, Brabant F, Dumont I, Stefels J. High-resolution dimethyl sulfide and dimethylsulfoniopropionate time series profiles in decaying summer first-year sea ice at Ice Station Polarstern, western Weddell Sea, Antarctica. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jg001427] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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290
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Veres P, Roberts JM, Burling IR, Warneke C, de Gouw J, Yokelson RJ. Measurements of gas-phase inorganic and organic acids from biomass fires by negative-ion proton-transfer chemical-ionization mass spectrometry. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014033] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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291
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Liggio J, Li SM, Vlasenko A, Sjostedt S, Chang R, Shantz N, Abbatt J, Slowik JG, Bottenheim JW, Brickell PC, Stroud C, Leaitch WR. Primary and secondary organic aerosols in urban air masses intercepted at a rural site. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014426] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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292
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Affiliation(s)
- Robert S Blake
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, United Kingdom
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293
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Mielke LH, Pratt KA, Shepson PB, McLuckey SA, Wisthaler A, Hansel A. Quantitative Determination of Biogenic Volatile Organic Compounds in the Atmosphere Using Proton-Transfer Reaction Linear Ion Trap Mass Spectrometry. Anal Chem 2010; 82:7952-7. [DOI: 10.1021/ac1014244] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Levi H. Mielke
- Departments of Chemistry and Earth and Atmospheric Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, Indiana 47907, and Institut für Ionenphysik and Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Kerri A. Pratt
- Departments of Chemistry and Earth and Atmospheric Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, Indiana 47907, and Institut für Ionenphysik and Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Paul B. Shepson
- Departments of Chemistry and Earth and Atmospheric Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, Indiana 47907, and Institut für Ionenphysik and Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Scott A. McLuckey
- Departments of Chemistry and Earth and Atmospheric Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, Indiana 47907, and Institut für Ionenphysik and Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Armin Wisthaler
- Departments of Chemistry and Earth and Atmospheric Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, Indiana 47907, and Institut für Ionenphysik and Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
| | - Armin Hansel
- Departments of Chemistry and Earth and Atmospheric Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, Indiana 47907, and Institut für Ionenphysik and Angewandte Physik, Universität Innsbruck, Innsbruck, Austria
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294
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Sinha V, Williams J, Lelieveld J, Ruuskanen TM, Kajos MK, Patokoski J, Hellen H, Hakola H, Mogensen D, Boy M, Rinne J, Kulmala M. OH reactivity measurements within a boreal forest: evidence for unknown reactive emissions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:6614-6620. [PMID: 20687598 DOI: 10.1021/es101780b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Boreal forests emit large amounts of volatile organic compounds (VOCs) which react with the hydroxyl radical (OH) to influence regional ozone levels and form secondary organic aerosol. Using OH reactivity measurements within a boreal forest in Finland, we investigated the budget of reactive VOCs. OH reactivity was measured using the comparative reactivity method, whereas 30 individual VOCs were measured using proton transfer reaction mass spectrometry, thermal-desorption gas chromatography mass spectrometry, and liquid chromatography mass spectrometry, in August 2008. The measured OH reactivity ranged from below detection limit (3.5 s(-1)), to approximately 60 s(-1) in a single pollution event. The average OH reactivity was approximately 9 s(-1) and no diel variation was observed in the profiles. The measured OH sinks (approximately 30 species) accounted for only 50% of the total measured OH reactivity, implying unknown reactive VOCs within the forest. The five highest measured OH sinks were: monoterpenes (1 s(-1)), CO (0.7 s(-1)), isoprene (0.5 s(-1)), propanal and acetone (0.3 s(-1)), and methane (0.3 s(-1)). We suggest that models be constrained by direct OH reactivity measurements to accurately assess the impact of boreal forest emissions on regional atmospheric chemistry and climate.
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Affiliation(s)
- Vinayak Sinha
- Max Planck Institute for Chemistry, Department of Air Chemistry, P.O. Box 3060, 55020 Mainz, Germany.
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295
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Washenfelder RA, Trainer M, Frost GJ, Ryerson TB, Atlas EL, de Gouw JA, Flocke FM, Fried A, Holloway JS, Parrish DD, Peischl J, Richter D, Schauffler SM, Walega JG, Warneke C, Weibring P, Zheng W. Characterization of NOx, SO2, ethene, and propene from industrial emission sources in Houston, Texas. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd013645] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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296
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Farmer DK, Jimenez JL. Real-time Atmospheric Chemistry Field Instrumentation. Anal Chem 2010; 82:7879-84. [DOI: 10.1021/ac1010603] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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297
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Sprung D, Zahn A. Acetone in the upper troposphere/lowermost stratosphere measured by the CARIBIC passenger aircraft: Distribution, seasonal cycle, and variability. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd012099] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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298
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Zheng J, Khalizov A, Wang L, Zhang R. Atmospheric Pressure-Ion Drift Chemical Ionization Mass Spectrometry for Detection of Trace Gas Species. Anal Chem 2010; 82:7302-8. [DOI: 10.1021/ac101253n] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jun Zheng
- Departments of Chemistry and Atmospheric Sciences, Texas A & M University, College Station, Texas 77843-3150
| | - Alexei Khalizov
- Departments of Chemistry and Atmospheric Sciences, Texas A & M University, College Station, Texas 77843-3150
| | - Lin Wang
- Departments of Chemistry and Atmospheric Sciences, Texas A & M University, College Station, Texas 77843-3150
| | - Renyi Zhang
- Departments of Chemistry and Atmospheric Sciences, Texas A & M University, College Station, Texas 77843-3150
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299
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Han KH, Zhang JS, Wargocki P, Knudsen HN, Guo B. Determination of material emission signatures by PTR-MS and their correlations with odor assessments by human subjects. INDOOR AIR 2010; 20:341-354. [PMID: 20557375 DOI: 10.1111/j.1600-0668.2010.00662.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
UNLABELLED The objectives of this study were to determine volatile organic compound (VOC) emission signatures of nine typical building materials by using proton transfer reaction-mass spectrometry (PTR-MS) and to explore the correlation between the PTR-MS measurements and the measurements of acceptability by human subjects. VOC emissions from each material were measured in a 50-l small-scale chamber. Chamber air was sampled by PTR-MS to determine emission signatures. Sorbent tube sampling and TD-GC/MS analysis were also performed to identify the major VOCs emitted and to compare the resulting data with the PTR-MS emission signatures. The data on the acceptability of air quality assessed by human subjects were obtained from a previous experimental study in which the emissions from the same batch of materials were determined under the same area-specific ventilation rates as in the case of the measurements with PTR-MS. Results show that PTR-MS can be an effective tool for establishing VOC emission signatures of material types and that there were reasonable correlations between the PTR-MS measurements and the acceptability of air quality for the nine materials tested when the sum of selected major individual VOC odor indices was used to represent the emission level measured by PTR-MS. PRACTICAL IMPLICATIONS The study shows that unique emission patterns may exist for different types of building materials. These patterns, or signatures, can be established by using PTR-MS, an online monitoring device. The sum of selected major individual VOC odor indices determined by PTR-MS correlates well with the acceptability of air quality assessed by human subjects, and hence provides a feasible approach to assessing perceived indoor air quality. This online assessment will open a new gate in understanding the role of VOC emissions from building materials on perceived air quality, forming a good foundation to develop real-time or near real-time methods for standard material emission testing and labeling, quality control of emissions from materials, and assessing the acceptability of air quality in buildings.
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Affiliation(s)
- K H Han
- Building Energy and Environmental Systems Laboratory (BEESL), Department of Mechanical and Aerospace Engineering, Syracuse University, Syracuse, NY 13244, USA.
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300
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Feilberg A, Liu D, Adamsen APS, Hansen MJ, Jonassen KEN. Odorant emissions from intensive pig production measured by online proton-transfer-reaction mass spectrometry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:5894-900. [PMID: 20586445 DOI: 10.1021/es100483s] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Emission of odorous compounds from intensive livestock production is a cause of nuisance in populated rural areas. Knowledge on the chemical composition of odor and temporal variations in emissions are needed in order to identify factors of importance for emission rates and select proper abatement technologies. In this work, a method based on proton-transfer-reaction mass spectrometry (PTR-MS) has been developed and tested for continuous measurements of odorant emissions from intensive pig production facilities. The method is assessed to cover all presently known important odorants from this type of animal production with adequate sensitivity and a time resolution of less than one minute. The sensitivity toward hydrogen sulfide is demonstrated to exhibit a pronounced humidity dependency, which can be included in the calibration procedure in order to achieve quantitative results for this compound. Application of the method at an experimental pig facility demonstrated strong temporal variations in emissions, including diurnal variation. Based on these first results, air exchange and animal activity are suggested to be of importance for emission rates of odorants. Highest emissions are seen for hydrogen sulfide and acetic acid, whereas key odorants are evaluated from tabulated odor threshold values to be hydrogen sulfide, methanethiol, 4-methylphenol, and butanoic acid.
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Affiliation(s)
- Anders Feilberg
- Department of Biosystems Engineering, Aarhus University, Blichers Alle 20, DK-8830 Tjele, Denmark.
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