CONTROL; a solid-source mass spectrometer data acquisition program for use with Hewlett-Packard computers

1989 ◽  
Author(s):  
Brian D. Marshall
Keyword(s):  
Data Acquisition ◽  
Mass Spectrometer ◽  
Hewlett Packard ◽  
Source Mass ◽  
Data Acquisition Program ◽  
Spectrometer Data

Cumulative yields of stable and long-lived isotopes of tin in neutron-induced fission

1983 ◽  
Vol 61 (11) ◽  
pp. 1490-1497 ◽  
Author(s):  
K. J. R. Rosman ◽  
J. R. De Laeter ◽  
J. W. Boldeman ◽  
H. G. Thode
Keyword(s):  
Stable Isotopes ◽  
Fine Structure ◽  
Fission Product ◽  
Mass Spectrometer ◽  
Smooth Curve ◽  
Mass Region ◽  
Neutron Fission ◽  
Source Mass ◽  
Induced Fission ◽  
Fission Yields

The relative cumulative fission yields of the six stable isotopes of tin (117Sn,118Sn, 119Sn, 120Sn, 122Sn, and 124Sn) and the long-lived isotope 126Sn have been measured in the thermal and epicadium neutron fission of 233U and 235U, and the epicadium neutron fission of 238U. Nanogram-sized fission product tin samples were extracted from irradiated uranium samples and analyzed in a solid source mass spectrometer. In each case a smooth curve can be drawn through the yield points of the seven isotopes of tin. There is, therefore, no evidence of "fine structure" in the 117 ≤ A ≤ 126 portion of the symmetric mass region.

scholarly journals In-Situ Chemical and Isotopic Measurements of the Atmosphere of Jupiter

1998 ◽  
Vol 11 (2) ◽  
pp. 1057-1064
Author(s):  
P.R. Mahaffy ◽  
S.K. Atreya ◽  
H.B. Niemann ◽  
T.C. Owen
Keyword(s):  
Mass Spectrometer ◽  
Atmospheric Composition ◽  
Mixing Ratios ◽  
Major Species ◽  
Lateral Mixing ◽  
Detailed Composition ◽  
Different Depths ◽  
Galileo Probe ◽  
Spectrometer Data

AbstractInsights into both the detailed composition of Jupiter’s atmosphere and unexpected local meteorological phenomena were revealed by in-situ measurements from the Galileo Probe Neutral Mass Spectrometer taken on December 7, 1995. Measurements of the neutral atmospheric composition from a pressure of 0.5 bar to approximately 21 bar revealed the mixing ratios of the major species helium and hydrogen as well as numerous minor constituents including methane, water, ammonia, ethane, ethylene, propane, hydrogen sulfide, neon, argon, krypton, and xenon. This instrument measured the isotope ratios3He/4He, D/H, and13C/12C as well as the isotopes of neon, argon, krypton, and xenon. A summary is given of progress that has been made in refining preliminary estimates of the abundances of condensable volatiles and noble gases as a result of an ongoing laboratory study using a nearly identical engineering unit. The depletion of simple condensable species to depths well below their expected condensation levels is explained by a local downdraft in the region of the probe entry. The mass spectrometer data suggests that different species may recover at different depths and this may be due to lateral mixing of Jovian air.

scholarly journals Internal Versus External Sources of Plasma at Saturn: Overview From Magnetospheric Imaging Investigation/Charge-Energy-Mass Spectrometer Data

2018 ◽  
Vol 123 (6) ◽  
pp. 4712-4727 ◽  
Author(s):  
R. C. Allen ◽  
D. G. Mitchell ◽  
C. P. Paranicas ◽  
D. C. Hamilton ◽  
G. Clark ◽  
...  
Keyword(s):  
Mass Spectrometer ◽  
Charge Energy ◽  
External Sources ◽  
Spectrometer Data

A Method for Estimating Mass-Transfer Coefficients in a Biofilter from Membrane Inlet Mass Spectrometer Data

2009 ◽  
Vol 59 (2) ◽  
pp. 155-162 ◽  
Author(s):  
Anders Michael Nielsen ◽  
Lars Peter Nielsen ◽  
Anders Feilberg ◽  
Knud Villy Christensen
Keyword(s):  
Mass Transfer ◽  
Mass Spectrometer ◽  
Transfer Coefficients ◽  
Mass Transfer Coefficients ◽  
Spectrometer Data

scholarly journals SODIUM ANALYSIS WITH SPARK SOURCE MASS SPECTROMETER.

1969 ◽  
Author(s):  
IV, H. Farrar ◽  
C. H. Knox ◽  
R. C. Shepard
Keyword(s):  
Mass Spectrometer ◽  
Source Mass

Separation and Characterization of Amine Drugs and Their Enantiomers by Capillary Column Gas Chromatography-Mass Spectrometry

1983 ◽  
Vol 66 (6) ◽  
pp. 1443-1446
Author(s):  
Ray H Liu ◽  
Warren W Ku ◽  
Mary P Fitzgerald
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Mass Spectrometer ◽  
Capillary Column ◽  
Gas Chromatography Mass Spectrometry ◽  
Gas Chromatograph ◽  
Capillary Column Gas Chromatography ◽  
Spectrometer Data ◽  
Amine Drug

Abstract A gas chromatograph-mass spectrometer-data system equipped with a capillary column is used to analyze commonly abused amine drug mixtures. Enantiomeric amines are analyzed as N-trifluoroacetyl- I-prolyl chloride derivatives. The 10 compounds included in this study are amphetamine, methamphetamine, norephedrine, ephedrine, 3,-4-methylenedioxyamphetamine, N,N-dimethyltryptamine, N,N-diethyltryptamine, N,N-dimethyl-5-methoxytryptamine, mescaline, and caffeine. All compounds, including possible enantiomers, are resolved and identified by the described method.

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