Purification of carbon dioxide for mass spectral analysis by gas-liquid chromatography

1967 ◽  
Vol 39 (6) ◽  
pp. 681-682 ◽  
Author(s):  
R. B. Jordan ◽  
Allan L. Odell
Keyword(s):  
Carbon Dioxide ◽  
Spectral Analysis ◽  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Mass Spectral Analysis ◽  
Mass Spectral

Gas-liquid chromatography and mass spectral analysis of mono-, di- and tricarboxylates as their tert.-butyldimethylsilyl derivatives

1986 ◽  
Vol 361 ◽  
pp. 117-130 ◽  
Author(s):  
Thomas P. Mawhinney ◽  
R.S.Robin Robinett ◽  
Asmare Atalay ◽  
Michael A. Madson
Keyword(s):  
Spectral Analysis ◽  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Mass Spectral Analysis ◽  
Mass Spectral

Gas-liquid chromatography and mass-spectral analysis of per-O-trimethylsilyl acyclic ketoxime derivatives of neuraminic acid

1982 ◽  
Vol 104 (2) ◽  
pp. 169-181 ◽  
Author(s):  
Thomas P. Mawhinney ◽  
Michael A. Madson ◽  
Roy H. Rice ◽  
Milton S. Feather ◽  
Giulio J. Barbero
Keyword(s):  
Spectral Analysis ◽  
Liquid Chromatography ◽  
Neuraminic Acid ◽  
Gas Liquid Chromatography ◽  
Mass Spectral Analysis ◽  
Mass Spectral ◽  
Derivatives Of

Determination of yohimbine and its two hydroxylated metabolites in humans by high-performance liquid chromatography and mass spectral analysis

1992 ◽  
Vol 574 (2) ◽  
pp. 283-292 ◽  
Author(s):  
Roger Le Verge ◽  
Pascal Le Corre ◽  
François Chevanne ◽  
Michèle Döe De Maindreville ◽  
Daniel Royer ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Spectral Analysis ◽  
Liquid Chromatography ◽  
High Performance ◽  
Mass Spectral Analysis ◽  
Mass Spectral ◽  
Hydroxylated Metabolites

scholarly journals SYNTHESIS, CHARACTERIZATION, AND ANTHELMINTIC ACTIVITY OF NOVEL BENZOTHIAZOLE DERIVATIVES CONTAINING INDOLE MOIETIES

2019 ◽  
pp. 321-325
Author(s):  
ALETI RAJAREDDY ◽  
SRINIVAS MURTHY M
Keyword(s):  
Spectral Analysis ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Magnetic Resonance ◽  
Fourier Transform Infrared Spectroscopy ◽  
Anthelmintic Activity ◽  
Mass Spectral Analysis ◽  
Standard Drug ◽  
Mass Spectral ◽  
Benzothiazole Derivatives

Objective: The objective of this study was to synthesize and evaluate the anthelmintic activity (AA) of novel benzothiazole derivatives containing indole moieties (BDIM). Methods: The present works which involve the substituted isatin Schiff bases undergo acetylating and reacting with 2-aminobenzothiazole to give novel BDIM. Results: All the newly synthesized molecules (5a-5o) were characterized by Fourier-transform infrared spectroscopy, H_nuclear magnetic resonance, and mass spectral analysis along with physical data. The biological potentials of the newly synthesized compounds are evaluated for their AA using an Indian earthworm (Pheretima posthuma), and albendazole was used as standard drug. Conclusion: The synthesized compound 5f, 5n, and 5o showed good AA, whereas others exhibited significant activities.

Mass Defect from Nuclear Physics to Mass Spectral Analysis

2017 ◽  
Vol 28 (9) ◽  
pp. 1836-1843 ◽  
Author(s):  
Soheil Pourshahian
Keyword(s):  
Spectral Analysis ◽  
Nuclear Physics ◽  
Mass Defect ◽  
Mass Spectral Analysis ◽  
Mass Spectral

High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina

Fuel ◽  
2014 ◽  
Vol 119 ◽  
pp. 47-56 ◽  
Author(s):  
Nilusha Sudasinghe ◽  
Barry Dungan ◽  
Peter Lammers ◽  
Karl Albrecht ◽  
Doug Elliott ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Hydrothermal Liquefaction ◽  
Water Soluble ◽  
Residual Water ◽  
Nannochloropsis Salina ◽  
Mass Spectral Analysis ◽  
Mass Spectral ◽  
Marine Microalga ◽  
Bio Oil ◽  
Ft Icr

The reaction of iodine with lithium tri-tert-butoxyaluminohydride. A reaction with variable stoichiometry unsuitable for analytical standardization

1977 ◽  
Vol 55 (20) ◽  
pp. 3616-3619 ◽  
Author(s):  
Donald C. Wigfield ◽  
Frederick W. Gowland
Keyword(s):  
Spectral Analysis ◽  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Titrimetric Method ◽  
Variable Stoichiometry

Solutions of lithium tri-tert-butoxyaluminohydride (LTBA) have been standardized by reduction of cyclohexanone, followed by gas–liquid chromatography (glc) and/or spectral analysis of the extent of reaction. These results are compared with the standard titrimetric analysis of LTBA by iodine, to determine whether the standardizing equation is[Formula: see text]Or[Formula: see text]It is clear that in fact both of these reactions occur, with [5] predominating at low hydride to iodine ratios, and [3] becoming increasingly significant when the hydride and iodine concentrations become comparable. The usual titrimetric method of standardizing LTBA is therefore essentially unusable.

Electron capture gas-liquid chromatographic-mass spectral identification of acids produced by Neisseria meningitidis in a defined medium

1979 ◽  
Vol 9 (1) ◽  
pp. 97-102
Author(s):  
C C Alley ◽  
J B Brooks ◽  
D S Kellogg
Keyword(s):  
Liquid Chromatography ◽  
Neisseria Meningitidis ◽  
Electron Capture ◽  
Defined Medium ◽  
Gas Liquid Chromatography ◽  
Mass Spectral ◽  
Spectral Identification ◽  
Acid Metabolites ◽  
Liquid Chromatographic ◽  
Chromatographic Mass

The acid metabolites and the cellular fatty acids of three strains of Neisseria meningitidis grown in a chemically defined liquid medium were determined with computerized frequency-pulsed electron capture gas-liquid chromatography. Five acids not previously reported were subsequently identified: isobutyric, octanoic, decenoic (C10:1), dodecenoic (C12:1), and tetradecenoic (C14:1). These acids were produced during active metabolism and were not detected as cellular constituents. The frequency-pulsed electron capture gas-liquid chromatography methods which we used provide a rapid, reliable, sensitive means of detecting both these and other metabolic and cellular acids in spent culture medium.

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