Improved detection of low vapor pressure compounds in air by serial combination of single-sided membrane introduction with fiber introduction mass spectrometry (SS-MIMS-FIMS)

The Analyst ◽  
2005 ◽  
Vol 130 (5) ◽  
pp. 679-686 ◽  
Author(s):  
Ismael Cotte-Rodríguez ◽  
Eric Handberg ◽  
Robert J. Noll ◽  
David P. A. Kilgour ◽  
R. Graham Cooks
Keyword(s):  
Mass Spectrometry ◽  
Vapor Pressure

Article

1999 ◽  
Vol 77 (2) ◽  
pp. 243-248
Author(s):  
Komla Oscar Awitor ◽  
Laurent Bernard ◽  
Olivier Bonnin ◽  
Bernard Coupat ◽  
Jean Paul Fournier ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Vapor Pressure ◽  
Vapor Phase ◽  
Mercuric Chloride ◽  
Mass Fraction ◽  
Direct Synthesis ◽  
Knudsen Cell ◽  
Cell Method ◽  
Mercurous Chloride

Mercurous chloride (Hg2Cl2), or calomel, was prepared by direct synthesis from commercial mercury and mercuric chloride. The mercuric chloride mass fraction in the synthesized material is particularly small. The mercurous chloride vapor pressure was measured between 353 and 453 K by the Knudsen cell method. In order to obtain the mercurous chloride vapor pressure, we took into account the dissociation in the vapor phase into mercury and mercuric chloride. Our results are compared with those in the literature.Key words: mercurous chloride, calomel, vapor pressure, mass spectrometry, Knudsen cell.

Molecular Weight of Petroleum Asphaltenes:  A Comparison between Mass Spectrometry and Vapor Pressure Osmometry

2005 ◽  
Vol 19 (4) ◽  
pp. 1548-1560 ◽  
Author(s):  
Sócrates Acevedo ◽  
Luis B. Gutierrez ◽  
Gabriel Negrin ◽  
Juan Carlos Pereira ◽  
Bernardo Mendez ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Molecular Weight ◽  
Vapor Pressure ◽  
Vapor Pressure Osmometry ◽  
Petroleum Asphaltenes

Determination of the saturation vapor pressure of silicon by Knudsen cell mass spectrometry

2012 ◽  
Vol 57 (2) ◽  
pp. 219-225 ◽  
Author(s):  
S. I. Lopatin ◽  
V. L. Stolyarova ◽  
V. G. Sevast’yanov ◽  
P. Ya. Nosatenko ◽  
V. V. Gorskii ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Vapor Pressure ◽  
Cell Mass ◽  
Knudsen Cell ◽  
Saturation Vapor Pressure ◽  
Cell Mass Spectrometry ◽  
Knudsen Cell Mass Spectrometry ◽  
Saturation Vapor

scholarly journals Fast and Complete CO2-to-Graphite Conversion for 14C Accelerator Mass Spectrometry

Radiocarbon ◽  
1986 ◽  
Vol 28 (2A) ◽  
pp. 186-190 ◽  
Author(s):  
Gert Hut ◽  
H Göte Östlund ◽  
Klaas van der Borg
Keyword(s):  
Mass Spectrometry ◽  
Water Vapor ◽  
Vapor Pressure ◽  
Accelerator Mass Spectrometry ◽  
Reaction Rate ◽  
Water Vapor Pressure ◽  
Memory Effects ◽  
Forced Circulation ◽  
Graaff Accelerator ◽  
Reaction Proceeds

With Fe powder as a catalyst, CO2 is completely converted to graphite within 90 minutes. The reaction proceeds at 650°C with an excess of H2. The reaction rate is enlarged by forced circulation and by keeping the water vapor pressure very low. The graphite samples obtained, consisting of 5mg of carbon, almost immediately produce stable 12C− currents of the order of 20–30μA in the sputter source of a Van de Graaff accelerator. The currents can be maintained for at least 10 hours and are comparable to those from commercial graphite. No memory effects in the preparation system have been observed.

An evaluation of low vapor pressure liquids for membrane introduction mass spectrometry

1997 ◽  
Vol 32 (12) ◽  
pp. 1299-1304 ◽  
Author(s):  
R. C. Johnson ◽  
K. Koch ◽  
N. Kasthurikrishnan ◽  
W. Plass ◽  
J. S. Patrick ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Vapor Pressure ◽  
Membrane Introduction Mass Spectrometry
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