Mass-spectrometric ion source for high-temperature investigations

1971 ◽  
Vol 10 (1) ◽  
pp. 82-83
Author(s):  
V. V. Fesenko ◽  
S. P. Gordienko ◽  
A. A. Lysenko
Keyword(s):  
High Temperature ◽  
Ion Source ◽  
Mass Spectrometric

High‐temperature mass spectrometric study of vaporization and thermodynamics of the Cs 2 O‐B 2 O 3 system: Review and experimental investigation

2021 ◽  
Vol 35 (11) ◽  
Author(s):  
Valentina L. Stolyarova ◽  
Viktor A. Vorozhtcov ◽  
Sergey I. Lopatin ◽  
Sergey M. Shugurov ◽  
Elizaveta P. Simonenko ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
High Temperature ◽  
Mass Spectrometric Study ◽  
Mass Spectrometric ◽  
Spectrometric Study ◽  
System Review

scholarly journals Development, Optimization and Validation of a Sustainable and Quantifiable Methodology for the Determination of 2,4,6-Trichloroanisole, 2,3,4,6-Tetrachloroanisole, 2,4,6-Tribromoanisole, Pentachloroanisole, 2-Methylisoborneole and Geosmin in Air

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1571
Author(s):  
Patricia Jové ◽  
Marina Vives-Mestres ◽  
Raquel De Nadal ◽  
Maria Verdum
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Temperature ◽  
Thermal Desorption ◽  
Mass Spectrometric ◽  
Gas Chromatography Mass Spectrometry ◽  
Air Analysis ◽  
Good Linearity ◽  
Repeatability And Reproducibility

Compounds 2,4,6-trichloroanisole (TCA), 2,3,4,6-tetrachloroanisole (TeCA), 2,4,6-tribromoanisole (TBA) and pentachloroanisole (PCA), 2-methylisoborneol (2MIB) and geosmin (GSM) have been reported as being responsible for cork and wine taint. A sustainable method based on thermal desorption-gas chromatography–mass spectrometry (TD-GC/MS) has been developed and optimized, taking into account desorption parameters and chromatographic and mass spectrometric conditions. The combination of parameters that jointly maximized the compound detection was as follows: desorption temperature at 300 °C, desorption time at 30 min, cryo-temperature at 20 °C and trap high temperature at 305 °C. The proposed methodology showed a good linearity (R ≤ 0.994) within the tested range (from 0.1 to 2 ng) for all target compounds. The precision expressed as repeatability and reproducibility was RSD < 10% in both. The limits of quantification ranged from 0.05 to 0.1 ng. The developed methodology and the sampling rates (R-values) of all targeted compounds (from 0.013 to 0.071 m3 h−1) were applied to the air analysis of two wineries. The results showed that the developed methodology is a sustainable and useful tool for the determination of these compounds in air.

Cyclopentadienylidenecarbonyl: the Major Primary Thermolytic Fragment of Salicylaldehyde

1971 ◽  
Vol 49 (22) ◽  
pp. 3602-3606 ◽  
Author(s):  
O. A. Mamer
Keyword(s):  
Temperature Dependence ◽  
Title Compound ◽  
Molecular Ions ◽  
Ion Source ◽  
Mass Spectrometric ◽  
Thermal Reactor ◽  
Helium Flow ◽  
Preparative Scale ◽  
Thermal Fragmentation ◽  
Chromatographic Mass

The thermal fragmentation of salicylaldehyde was studied from two aspects. Firstly, the temperature dependence of the intensity of the thermolytic fragment molecular ions was observed at 11 eV in the effluent from a helium flow thermal reactor attached through a helium separator to the ion source of a mass spectrometer. Secondly, the products of the thermolysis on a semi-preparative scale under trapping conditions were determined by coupled gas chromatographic – mass spectrometric analysis.The title compound is the major primary thermal fragment in this study and was trapped with methanol as carboxymethylcyclopentadiene.

A high temperature ion source for isotope separators

1973 ◽  
Vol 106 (1) ◽  
pp. 83-87 ◽  
Author(s):  
P.G. Johnson ◽  
A. Bolson ◽  
C.M. Henderson
Keyword(s):  
High Temperature ◽  
Ion Source

MASS SPECTROMETRIC STUDIES OF HIGH TEMPERATURE SYSTEMS

1963 ◽  
pp. 99-109 ◽  
Author(s):  
W.A. CHUPKA ◽  
J. BERKOWITZ ◽  
D.J. MESCHI ◽  
H.A. TASMAN
Keyword(s):  
High Temperature ◽  
Mass Spectrometric
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