Chemical-ionisation processes in time-of-flight mass spectrometers for real-time analysis of atmospheric trace species

Robert Blake; Andrew Ellis; Kerry Willis; Christopher Whyte; Kevin Wyche; Paul Monks

Chemical-ionisation processes in time-of-flight mass spectrometers for real-time analysis of atmospheric trace species

Robert Blake, Andrew Ellis, Kerry Willis, Christopher Whyte, Kevin Wyche, Paul Monks

Research output: Contribution to conference › Abstract › peer-review

Abstract

Proton transfer reaction mass spectrometry has become increasingly prominent since the 1990s and has a wide range of applications in analytical science. Essentially the technique relies on chemical ionisation via proton transfer from H3O+ to molecules with proton affinities greater than water. Coupling chemical ionisation to time-of-flight mass spectrometers has been demonstrated [Blake et al, Anal.Chem., 76, 3841-3845, 2004] to be a powerful technique for real time multichannel detection of trace species.

In this work, we will explore the use of differing chemi-ionisation reagents, in particular NO+, which depending on the ionisation energy of the analyte will undertake charge transfer, for the ionisation of trace VOC/OVOCs. The ability for real-time speciation of a range of VOC/OVOCs using multi-chemi-ionisation reagents will be assessed.

Original language	English
Publication status	Published - 24 Apr 2005
Event	EGU General Assembly 2005 - Vienna, Austria Duration: 24 Apr 2005 → 29 Apr 2005

Conference

Conference	EGU General Assembly 2005
Abbreviated title	EGU 2005
Country/Territory	Austria
City	Vienna
Period	24/04/05 → 29/04/05

Keywords

volatile organic compound
proton transfer reaction mass spectrometry (PTR-MS)
air quality
Chemical ionisation reaction time-of-flight mass spectrometry

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Blake et al EGU05-J-07891Final published version, 32.5 KB

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title = "Chemical-ionisation processes in time-of-flight mass spectrometers for real-time analysis of atmospheric trace species",

abstract = "Proton transfer reaction mass spectrometry has become increasingly prominent since the 1990s and has a wide range of applications in analytical science. Essentially the technique relies on chemical ionisation via proton transfer from H3O+ to molecules with proton affinities greater than water. Coupling chemical ionisation to time-of-flight mass spectrometers has been demonstrated [Blake et al, Anal.Chem., 76, 3841-3845, 2004] to be a powerful technique for real time multichannel detection of trace species.In this work, we will explore the use of differing chemi-ionisation reagents, in particular NO+, which depending on the ionisation energy of the analyte will undertake charge transfer, for the ionisation of trace VOC/OVOCs. The ability for real-time speciation of a range of VOC/OVOCs using multi-chemi-ionisation reagents will be assessed.",

keywords = "volatile organic compound, proton transfer reaction mass spectrometry (PTR-MS), air quality, Chemical ionisation reaction time-of-flight mass spectrometry",

author = "Robert Blake and Andrew Ellis and Kerry Willis and Christopher Whyte and Kevin Wyche and Paul Monks",

year = "2005",

month = apr,

day = "24",

language = "English",

note = "EGU General Assembly 2005, EGU 2005 ; Conference date: 24-04-2005 Through 29-04-2005",

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TY - CONF

T1 - Chemical-ionisation processes in time-of-flight mass spectrometers for real-time analysis of atmospheric trace species

AU - Blake, Robert

AU - Ellis, Andrew

AU - Willis, Kerry

AU - Whyte, Christopher

AU - Wyche, Kevin

AU - Monks, Paul

PY - 2005/4/24

Y1 - 2005/4/24

N2 - Proton transfer reaction mass spectrometry has become increasingly prominent since the 1990s and has a wide range of applications in analytical science. Essentially the technique relies on chemical ionisation via proton transfer from H3O+ to molecules with proton affinities greater than water. Coupling chemical ionisation to time-of-flight mass spectrometers has been demonstrated [Blake et al, Anal.Chem., 76, 3841-3845, 2004] to be a powerful technique for real time multichannel detection of trace species.In this work, we will explore the use of differing chemi-ionisation reagents, in particular NO+, which depending on the ionisation energy of the analyte will undertake charge transfer, for the ionisation of trace VOC/OVOCs. The ability for real-time speciation of a range of VOC/OVOCs using multi-chemi-ionisation reagents will be assessed.

AB - Proton transfer reaction mass spectrometry has become increasingly prominent since the 1990s and has a wide range of applications in analytical science. Essentially the technique relies on chemical ionisation via proton transfer from H3O+ to molecules with proton affinities greater than water. Coupling chemical ionisation to time-of-flight mass spectrometers has been demonstrated [Blake et al, Anal.Chem., 76, 3841-3845, 2004] to be a powerful technique for real time multichannel detection of trace species.In this work, we will explore the use of differing chemi-ionisation reagents, in particular NO+, which depending on the ionisation energy of the analyte will undertake charge transfer, for the ionisation of trace VOC/OVOCs. The ability for real-time speciation of a range of VOC/OVOCs using multi-chemi-ionisation reagents will be assessed.

KW - volatile organic compound

KW - proton transfer reaction mass spectrometry (PTR-MS)

KW - air quality

KW - Chemical ionisation reaction time-of-flight mass spectrometry

M3 - Abstract

T2 - EGU General Assembly 2005

Y2 - 24 April 2005 through 29 April 2005

ER -

Chemical-ionisation processes in time-of-flight mass spectrometers for real-time analysis of atmospheric trace species

Abstract

Conference

Keywords

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