A Novel APPI-MS Setup for In Situ Degradation Product Studies of Atmospherically Relevant Compounds: Capillary Atmospheric Pressure Photo Ionization (cAPPI)
A Novel APPI-MS Setup for In Situ Degradation Product Studies of Atmospherically Relevant Compounds: Capillary Atmospheric Pressure Photo Ionization (cAPPI)
复制标题
用于大气相关化合物原位降解产物研究的新型 APPI-MS 设置:毛细管大气压光电离 (cAPPI)
DOI:
10.1007/s13361-011-0212-y
复制
发表时间:
2011
影响因子:
3.2
通讯作者:
Th. Benter
中科院分区:
文献类型:
--
作者:
H. Kersten;V. Derpmann;I. Barnes;K.J. Brockmann;Th. Benter
We report on the development of a novel atmospheric pressure photoionization setup and its applicability for in situ degradation product studies of atmospherically relevant compounds. A custom miniature spark discharge lamp was embedded into an ion transfer capillary, which separates the atmospheric pressure from the low pressure region in the first differential pumping stage of a conventional atmospheric pressure ionization mass spectrometer. The lamp operates with a continuous argon flow and produces intense light emissions in the VUV. The custom lamp is operated windowless and efficiently illuminates the sample flow through the transfer capillary on an area smaller than 1 mm2. Limits of detection in the lower ppbV range, a temporal resolution of milliseconds in the positive as well as the quasi simultaneously operating negative ion mode, and a significant reduction of ion transformation processes render this system applicable to real time studies of rapidly changing chemical systems. The method termed capillary atmospheric pressure photo ionization (cAPPI) is characterized with respect to the lamp emission properties as a function of the operating conditions, temporal response, and its applicability for in situ degradation product studies of atmospherically relevant compounds, respectively.
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DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
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通讯作者:
U. Kogelschatz
DOI:
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发表时间:
1964
期刊:
影响因子:
--
作者:
C. A. Jensen;W. F. Libby
通讯作者:
W. F. Libby
影响因子:
3.2
作者:
H. Kersten;M. Lorenz;K.J. Brockmann;Th. Benter
通讯作者:
Th. Benter
影响因子:
15
作者:
LePage, V;Keheyan, Y;Snow, TP
通讯作者:
Snow, TP
DOI:
10.1016/j.jasms.2009.06.014
发表时间:
2009
影响因子:
3.2
作者:
H. Kersten;V. Funcke;M. Lorenz;K.J. Brockmann;Th. Benter;R. O’Brien
通讯作者:
R. O’Brien