Retrieval of carbon monoxide content in the atmosphere from high resolution atmospheric spectra

2019 ◽  
Keyword(s):  
Carbon Monoxide ◽  
High Resolution ◽  
Carbon Monoxide Content

Electron impact studies. VI. Mass spectra of esters and thioesters. Skeletal rearrangement on electron impact

1967 ◽  
Vol 20 (4) ◽  
pp. 689 ◽  
Author(s):  
JH Bowie ◽  
RG Cooks ◽  
P Jakobsen ◽  
S Lawesson ◽  
G Schroll
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
High Resolution ◽  
Electron Impact ◽  
Mass Spectra ◽  
Skeletal Rearrangement ◽  
Unsaturated Esters ◽  
Impact Studies ◽  
Unsaturated Alcohols ◽  
Metastable Ions

The mass spectra of representative series of simple alkyl acetoacetates, alkyl acetothioacetates, and some unsaturated esters derived from unsaturated alcohols or phenols are reported and discussed. The fragmentation schemes have been established by high resolution measurements, appropriate metastable ions, and by deuterium and 18O labelling. Many of the spectra show significant skeletal rearrangement fragments arising from either loss of carbon monoxide or carbon dioxide.

HIGH-RESOLUTION OSCILLATOR STRENGTH MEASUREMENTS OF THEv′ = 0,1 BANDS OF THEB-X,C-X, ANDE-XSYSTEMS IN FIVE ISOTOPOLOGUES OF CARBON MONOXIDE

2014 ◽  
Vol 788 (1) ◽  
pp. 67 ◽  
Author(s):  
G. Stark ◽  
A. N. Heays ◽  
J. R. Lyons ◽  
P. L. Smith ◽  
M. Eidelsberg ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
High Resolution ◽  
Oscillator Strength

An Artifact in the Analysis of Oxygenated Blood for Its Low Carbon Monoxide Content

1970 ◽  
Vol 16 (11) ◽  
pp. 896-899 ◽  
Author(s):  
F Lee Rodkey ◽  
Harold A Collison
Keyword(s):  
Carbon Monoxide ◽  
Citric Acid ◽  
Chromatographic Method ◽  
Low Carbon ◽  
Rate Of Reaction ◽  
Gas Chromatographic Method ◽  
Carbon Monoxide Content

Abstract A sensitive gas chromatographic method for blood CO determination was used to analyze samples of reduced and oxygenated blood having identical low CO content. Oxygenated blood always released more CO than did the reduced samples when neutral ferricyanide was used as oxidant. Several reagents for CO release from blood were applied to both oxygenated and reduced samples. CO release by K3Fe(CN)6 from oxygen-free blood or COHb solutions was complete and constant from pH 1.5 to 6. Values of extra CO released from oxygenated samples varied from 0.003 vol % at pH 1.5 to over 0.015 vol % at pH 6. The least amounts of excess CO were produced between pH 2 and 4.5. Neutral K2Cr2O7 causes less excess CO formation than does K3Fe(CN)6, but the rate of reaction with COHb is low. Neutral KMnO4 and acid K2Cr2O7 cause extreme formation of excess CO from blood in amounts many times the amount of COHb present. Acid KIO3 effectively releases CO from COHb solutions and reduced blood, but causes more excess CO formation from oxygenated blood than K3Fe(CN)6. When CO is released in citric acid with K3Fe(CN)6 at a pH of about 3.5, the CO released from oxygenated blood is only about 0.001 vol % greater than that released from reduced samples. These differences indicate formation of small amounts of CO during reactions used to release CO from blood. Reduced hemoglobin and carboxyhemoglobin appear to be much more stable to these procedures than is oxyhemoglobin.

High resolution J = 2 - 1 and J = 1 - 0 carbon monoxide self-reversed line profiles toward molecular clouds

1981 ◽  
Vol 245 ◽  
pp. 495 ◽  
Author(s):  
R. B. Loren ◽  
R. L. Plambeck ◽  
J. H. Davis ◽  
R. L. Snell
Keyword(s):  
Carbon Monoxide ◽  
High Resolution ◽  
Molecular Clouds ◽  
Line Profiles ◽  
Reversed Line

Determination of blood carbon monoxide content by gas chromatography.

1966 ◽  
Vol 21 (4) ◽  
pp. 1368-1370 ◽  
Author(s):  
S M Ayres ◽  
A Criscitiello ◽  
S Giannelli
Keyword(s):  
Gas Chromatography ◽  
Carbon Monoxide ◽  
Carbon Monoxide Content
Sign in / Sign up

Export Citation Format

Share Document