scholarly journals Identification of Abscisic Acid in Tulipa gesneriana L. by Gas-Liquid Chromatography with Electron Capture and Combined Gas-Liquid Chromatography and Mass Spectrometry

1982 ◽  
Vol 70 (5) ◽  
pp. 1574-1576 ◽  
Author(s):  
Paul H. Terry ◽  
Louis H. Aung ◽  
August A. De Hertogh
Keyword(s):  
Mass Spectrometry ◽  
Abscisic Acid ◽  
Liquid Chromatography ◽  
Electron Capture ◽  
Gas Liquid Chromatography ◽  
Tulipa Gesneriana

scholarly journals Rapid diagnosis of lymphocytic meningitis by frequency-pulsed electron capture gas-liquid chromatography: differentiation of tuberculous, cryptococcal, and viral meningitis

1977 ◽  
Vol 6 (1) ◽  
pp. 27-32
Author(s):  
R B Craven ◽  
J B Brooks ◽  
D C Edman ◽  
J D Converse ◽  
J Greenlee ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Cerebrospinal Fluid ◽  
Liquid Chromatography ◽  
Electron Capture ◽  
Viral Meningitis ◽  
Rapid Diagnosis ◽  
Gas Liquid Chromatography ◽  
Therapeutic Approaches ◽  
New Therapeutic Approaches ◽  
Lymphocytic Meningitis

Cerebrospinal fluid specimens from patients with tuberculous (17 cases), cryptococcal (15 cases), and viral (14 cases) meningitis were analyzed by frequency-pulsed electron capture gas-liquid chromatography and mass spectrometry. Compounds that disappeared after therapy were found to be present in each of these specimens and were not detected in controls. They occurred in repetitive patterns such that these three types of meningitis could be rapidly distinguished. The compound associated with tuberculous meningitis has been tentatively identified. These finding have implications for rapid diagnosis, pathophysiological studies, and possible new therapeutic approaches.

scholarly journals Electron capture gas chromatography detection and mass spectrum identification of 3-(2'-ketohexyl)indoline in spinal fluids of patients with tuberculous meningitis

1977 ◽  
Vol 5 (6) ◽  
pp. 625-628
Author(s):  
J B Brooks ◽  
G Choudhary ◽  
R B Craven ◽  
C C Alley ◽  
J A Liddle ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Liquid Chromatography ◽  
Mass Spectrum ◽  
Electron Capture ◽  
Tuberculous Meningitis ◽  
Gas Liquid Chromatography ◽  
Heptafluorobutyric Anhydride

A basic, extractable, indolic type of compound, which was derivatized with heptafluorobutyric anhydride and pyridine, was obtained from the cerebrospinal fluids of patients with acute tuberculous meningitis. The compound was detected by frequency-pulsed, modulated electron capture gas-liquid chromatography, and it was tentatively identified by mass spectrometry as 3-(2'-ketohexyl)indoline. The compound was found to be valuable for differentiating between tuberculous, cryptococcal, and aseptic meningitides.

Identification of Cholesterol as a Possible Interference in the Analysis of Fish Tissue for Industrial Chemical Residues

1976 ◽  
Vol 59 (5) ◽  
pp. 1187-1188
Author(s):  
Henry C Hollifield
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Electron Capture ◽  
Gel Permeation Chromatography ◽  
Fish Tissue ◽  
Gas Liquid Chromatography ◽  
Tissue Extracts ◽  
Chemical Residues ◽  
Gel Permeation ◽  
Aoac Method

Abstract The presence of cholesterol in cleaned up fish tissue extracts has been established by gas-liquid chromatography and confirmed by mass spectrometry. It was found both in extracts cleaned up by gel permeation chromatography and in those extracts prepared by the AOAC method for nonfatty foods. It is not normally observed in routine residue analyses because selective gas chromatographic detectors such as electron capture are commonly used.

Concentrations of non-glucose polyols in serum and cerebrospinal fluid from apparently healthy adults and children.

1984 ◽  
Vol 30 (2) ◽  
pp. 188-191 ◽  
Author(s):  
S Yoshioka ◽  
S Saitoh ◽  
S Seki ◽  
K Seki
Keyword(s):  
Mass Spectrometry ◽  
Cerebrospinal Fluid ◽  
Liquid Chromatography ◽  
Healthy Subjects ◽  
Metabolic Diseases ◽  
Gas Liquid Chromatography ◽  
Liquid Chromatography Mass Spectrometry ◽  
Adults And Children ◽  
Healthy Persons ◽  
Apparently Healthy

Abstract Six non-glucose polyols--mannose, fructose, 1-deoxyglucose, mannitol, glucitol, and inositol--were identified and evaluated in human serum and cerebrospinal fluid by gas-liquid chromatography and by gas-liquid chromatography/mass spectrometry. Concentrations of fructose, mannose, and inositol in the serum of healthy persons or children without metabolic diseases varied with age, as already reported for 1-deoxyglucose. Fructose, inositol, and glucitol concentrations in cerebrospinal fluid significantly exceeded those in serum. The method described here for determining polyols and for evaluating polyol patterns in serum, as well as the resulting data on children and healthy subjects, should be useful in investigations of the clinical and physiological significance of polyols.

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