Effect of Flow-Rate and Sample-Size on Column Efficiency in Gas-Liquid Chromatography

Nature ◽  
1960 ◽  
Vol 185 (4709) ◽  
pp. 311-312 ◽  
Author(s):  
RICHARD A. BERNHARD
Keyword(s):  
Liquid Chromatography ◽  
Sample Size ◽  
Flow Rate ◽  
Gas Liquid Chromatography ◽  
Column Efficiency

Simulation of column efficiency in temperature programmed gas-liquid chromatography

1995 ◽  
Vol 41 (5-6) ◽  
pp. 37-42 ◽  
Author(s):  
D. Messadi ◽  
L. Ferchichi ◽  
L. Nouar ◽  
N. Rebbani
Keyword(s):  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Column Efficiency ◽  
Temperature Programmed

Pyrolysis–gas–liquid chromatography of some dermatophytes

1972 ◽  
Vol 18 (10) ◽  
pp. 1593-1601 ◽  
Author(s):  
Awatar S. Sekhon ◽  
J. W. Carmichael
Keyword(s):  
Liquid Chromatography ◽  
Quantitative Analysis ◽  
Sample Size ◽  
Gas Liquid Chromatography ◽  
Mating Types ◽  
Pyrolysis Gas

Dermatophytes belonging to Nannizzia, Arthroderma, and Microsporum were examined by pyrolysis–gas–liquid chromatography. Replicate samples from the same colony, or samples from another colony of the same strain, yielded closely similar pyrograms, but the curves were not quite superimposable. Effects on the pyrolysis patterns of sample size, age of colony, and type of medium were investigated. Pyrograms of the plus and minus mating types of the species of Nannizzia and Arthroderma were similar to each other, but they did differ in some respects. The patterns of Microsporum audouini and M. canis differed considerably from each other. Quantitative analysis of the pyrochromatographic data, using several procedures, did not yield satisfactory results. It was found that variation between replicates was often as great as between species.

Simulation of column efficiency in temperature programmed gas-liquid chromatography

1995 ◽  
Vol 41 (1-2) ◽  
pp. 37-42
Author(s):  
D. Messadi ◽  
L. Ferchichi ◽  
L. Nouar ◽  
N. Rebbani
Keyword(s):  
Liquid Chromatography ◽  
Gas Liquid Chromatography ◽  
Column Efficiency ◽  
Temperature Programmed

A study of asphalt-aggregate interactions using inverse gas-liquid chromatography

1974 ◽  
Vol 24 (11) ◽  
pp. 645-654 ◽  
Author(s):  
F. Alan Barbour ◽  
Richard V. Barbour ◽  
J. Claine Peterson
Keyword(s):  
Liquid Chromatography ◽  
Gas Liquid Chromatography

GASCHROMATOGRAPHIC DETERMINATION OF STEROIDS IN THE URINE OF PATIENTS WITH CUSHING'S SYNDROME

1971 ◽  
Vol 67 (2) ◽  
pp. 303-315 ◽  
Author(s):  
A. J. Moolenaar ◽  
A. P. van Seters
Keyword(s):  
Liquid Chromatography ◽  
Cushing’S Syndrome ◽  
Normal Subjects ◽  
Diagnostic Value ◽  
Cushing's Syndrome ◽  
Gas Liquid Chromatography ◽  
Obese Subjects

ABSTRACT The 17-oxosteroids were estimated in the urine of 27 patients with Cushing's syndrome by gas-liquid chromatography (G. L. C.). The values of the various steroid fractions are compared with those of normal subjects, patients with thyrotoxicosis and obese subjects. The effect of the age of the patients on the diagnostic value of the invidual 17-oxosteroids and their ratios is discussed.

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