Practice for Testing and Sampling of Volatile Organic Compounds (Including Carbonyl Compounds) Emitted from Paint Using Small Environmental Chambers

2002 ◽  
Author(s):  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Carbonyl Compounds ◽  
Volatile Organic ◽  
Environmental Chambers

Selected problems concerning volatile organic compounds emission reduction from thick-veneer pine plywood

2020 ◽  
Vol 111 ◽  
pp. 131-20
Author(s):  
Martyna Dyrwal ◽  
Piotr Borysiuk
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Carbonyl Compounds ◽  
Emission Reduction ◽  
Caproic Acid ◽  
Emission Rates ◽  
Wood Material ◽  
Soaking Time ◽  
Volatile Organic ◽  
Higher Temperature

Selected problems concerning volatile organic compounds emission reduction from thick-veneer pine plywood. The paper presents results of research conducted on volatile organic compounds emissions, considering two different production parameter sets for thick-veneer pine plywood, manufactured in industrial conditions. Both types of plywood were produced from raw wood material, which was hydrothermally treated under two different variants of parameters (I – 47˚C, 19 h; II – 55˚C, 24 h). Based on the results it was stated that severe hydrothermal treatment of raw wood material (longer soaking time, higher temperature) had impact on reduction of plywood VOC emission rates. Main VOCs emitted from pine plywood were monoterpenes and carbonyl compounds. Of the monoterpenes, α-pinene and 3-carene had the highest emission. Of the carbonyl group of compounds, the highest emission had hexanal and caproic acid.

A versatile probe for chemoselective capture and analysis of carbonyl compounds in exhaled breath

2015 ◽  
Vol 7 (14) ◽  
pp. 6027-6033 ◽  
Author(s):  
Ralph J. Knipp ◽  
Mingxiao Li ◽  
Xiao-An Fu ◽  
Michael H. Nantz
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Carbonyl Compounds ◽  
Exhaled Breath ◽  
Volatile Organic

We describe an aminooxy reagent for the capture of trace aldehyde and ketone volatile organic compounds (VOCs) in exhaled breath.

scholarly journals Formation and Emissions of Volatile Organic Compounds from Homo-PP and Co-PP Resins during Manufacturing Process and Accelerated Photoaging Degradation

Molecules ◽  
2020 ◽  
Vol 25 (12) ◽  
pp. 2761 ◽  
Author(s):  
Peng Kang ◽  
Peng Wu ◽  
Yan Jin ◽  
Shengpeng Shi ◽  
Dali Gao ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Manufacturing Process ◽  
Carbonyl Compounds ◽  
New Technology ◽  
Alkoxy Radical ◽  
Volatile Organic ◽  
Hydrogen Flame ◽  
Mass Spectrometry Detector ◽  
Random Scission

Volatile organic compounds (VOCs) from polypropylene (PP) seriously restricts the application of PP in an automotive field. Herein, the traceability of VOCs from PP resins during manufacturing process and accelerated photoaging degradation was clarified on basis of an accurate characterization method of key VOCs. The influence of PP structures on changing the accelerated photoaging degradation on the VOCs was systematic. The VOCs were identified by means of Gas chromatography (GC) coupled with both a hydrogen flame ion detector (FID) and a mass spectrometry detector (MSD). Results showed that both the molecular structure of PP and the manufacturing process affected the species and contents of VOCs. In addition, the photoaging degradation of PP resulted in a large number of new emerged volatile carbonyl compounds. Our work proposed a possible VOC formation mechanism during the manufacturing and photoaging process. VOCs from PP resins were originated from oligomers and chain random scission during thermomechanical degradation. However, β scission of alkoxy radical and Norrish tape I reactions of ketones via intermediate transition were probably the main VOCs formation routes towards PP during photoaging degradation. This work could provide scientific knowledge on both the accurate traceability of VOCs emissions and new technology for development of low-VOCs PP composites for vehicle.

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