A novel gas sampling introduction interface for fast analysis of volatile organic compounds using radiofrequency pulsed glow discharge time of flight mass spectrometry

2018 ◽  
Vol 1038 ◽  
pp. 59-66 ◽  
Author(s):  
J. Fandino ◽  
M. Bouza ◽  
J. Pisonero ◽  
D. Blanco ◽  
A. Sanz-Medel ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Volatile Organic Compounds ◽  
Glow Discharge ◽  
Organic Compounds ◽  
Discharge Time ◽  
Fast Analysis ◽  
Pulsed Glow Discharge ◽  
Gas Sampling ◽  
Flight Mass Spectrometry ◽  
Volatile Organic

Depth profiling by pulsed glow discharge time-of-flight mass spectrometry with a combined hollow cathode cell

2020 ◽  
Vol 35 (8) ◽  
pp. 1587-1596
Author(s):  
Anna Gubal ◽  
Victoria Chuchina ◽  
Yegor Lyalkin ◽  
Vladimir Mikhailovskii ◽  
Viktor Yakobson ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Glow Discharge ◽  
Hollow Cathode ◽  
Time Of Flight ◽  
Depth Profiling ◽  
Discharge Time ◽  
Pulsed Glow Discharge ◽  
Flight Mass Spectrometry ◽  
Depth Analysis ◽  
Mass Spectrometry System

A combined hollow cathode microsecond direct current pulsed glow discharge time-of-flight mass spectrometry system has proved its efficiency for quantification; however, it has not been properly tested for the purpose of depth analysis.

scholarly journals Emissions of non-methane volatile organic compounds from combustion of domestic fuels in Delhi, India

2020 ◽  
Author(s):  
Gareth J. Stewart ◽  
W. Joe F. Acton ◽  
Beth S. Nelson ◽  
Adam R. Vaughan ◽  
James R. Hopkins ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Time Of Flight ◽  
Emission Factors ◽  
Two Dimensional ◽  
Flight Mass Spectrometry ◽  
Volatile Organic ◽  
Tof Ms

Abstract. 29 different fuel types used in residential dwellings in northern India were collected from across New Delhi (76 samples in total). Emission factors of a wide range of non-methane volatile organic compounds (NMVOCs) (192 compounds in total) were measured during controlled burning experiments using dual-channel gas chromatography with flame ionisation detection (DC-GD-FID), two-dimensional gas chromatography (GC×GC-FID), proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS) and solid-phase extraction two-dimensional gas chromatography with time-of-flight mass spectrometry (SPE-GC×GC-ToF-MS). 94 % quantification was achieved on average across all fuel types. The largest contributors to emissions from most fuel types were small non-aromatic oxygenated species, phenolics and furanics. The emission factors (in g kg−1) for total gas-phase NMVOCs were: fuel wood (18.7, 4.3–96.7), cow dung cake (62.0, 35.3–83.0), crop residue (37.9, 8.9–73.8), charcoal (5.4, 2.4–7.9), sawdust (72.4, 28.6–115.5), municipal solid waste (87.3, 56.6–119.1) and liquified petroleum gas (5.7, 1.9–9.8). The emission factors measured in this study allow for better characterisation, evaluation and understanding of the air quality impacts of residential solid fuel combustion in India.

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