Liquid chromatographic determination of aliphatic amines in water using solid support assisted derivatization with 9-fluorenylmethyl chloroformate

2002 ◽  
Vol 55 (3-4) ◽  
pp. 129-134 ◽  
Author(s):  
J. Verdú-Andrés ◽  
P. Campíns-Falcó ◽  
R. Herráez-Hernández
Keyword(s):  
Chromatographic Determination ◽  
Solid Support ◽  
Aliphatic Amines ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Gas-Liquid Chromatographic Determination of Anethole in Liqueurs

1974 ◽  
Vol 57 (4) ◽  
pp. 954-956
Author(s):  
Robert G Parker
Keyword(s):  
Liquid Chromatography ◽  
Stationary Phase ◽  
Chromatographic Determination ◽  
Solid Support ◽  
Gas Liquid Chromatography ◽  
Significant Difference ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Abstract In the method described, anethole is extracted from the liqueur sample with chloroform, which eliminates interference from the large amount of sugar present, and is determined by gas-liquid chromatography, using 10% K-20M Carbowax as stationary phase on Chromosorb W (AWDMCS) as solid support. Anethole concentrations were measured in 8 different bottle samples, consisting of 4 different brands produced by 3 different manufacturers. There is a significant difference in the anethole concentration for the 4 brands tested.

Simultaneous Liquid Chromatographic Determination of Selected Tricyclic Antidepressants and Co-Administered Benzodiazepines

2016 ◽  
Vol 12 (6) ◽  
pp. 560-567
Author(s):  
Marwa F. Mansour ◽  
Ehab F. El-Kady ◽  
Mona M. Abd El-Moety ◽  
Nabawia M. El-Guindi ◽  
Ann Van Schepdael ◽  
...  
Keyword(s):  
Tricyclic Antidepressants ◽  
Chromatographic Determination ◽  
Liquid Chromatographic Determination ◽  
Liquid Chromatographic

Gas-Liquid Chromatographic Determination of Technical Chlordane Residues in Food Crops: Interpretation of Analytical Data

1975 ◽  
Vol 58 (5) ◽  
pp. 1051-1061
Author(s):  
William P Cochrane ◽  
James F Lawrence ◽  
Young W Lee ◽  
Ronald B Maybury ◽  
Brian P Wilson
Keyword(s):  
Field Experiments ◽  
Stationary Phases ◽  
Analytical Data ◽  
Chromatographic Determination ◽  
Electron Capture Detection ◽  
Food Crops ◽  
Liquid Chromatographic Determination ◽  
Consistent Method ◽  
Liquid Chromatographic

Abstract An interlaboratory investigation of technical chlordane residues in food crops was carried out to determine the most practical and consistent method of reporting results. Using a technical chlordane reference standard, 8 gas chromatographic stationary phases were studied for their resolution capabilities. The best separations were obtained with SE-30 and its OV-1 equivalent. Using these columns and electron capture detection, potatoes and carrots from supervised field experiments were analyzed in duplicate and quantitated by using 4 methods of calculation. The data were statistically treated to determine the precision and bias for each method. Also, 1 sample was analyzed in duplicate on 2 different occasions by 6 laboratories to substantiate the initial conclusions. Based on the criterion of high precision it is suggested that a comparison of total area under the chromatogram of the sample with total area of a standard technical chlordane be the method of quantitation. Only peaks which are common to both standard and sample have any significance in this type of calculation.

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