Direct determination of partition coefficients of volatile liquids between oil and gas by gas chromatography and its use in QSAR analysis

1992 ◽  
Vol 34 (11-12) ◽  
pp. 601-606 ◽  
Author(s):  
R. Čabala ◽  
J. Svobodová ◽  
L. Feltl ◽  
M. Tichy
Keyword(s):  
Gas Chromatography ◽  
Partition Coefficients ◽  
Oil And Gas ◽  
Direct Determination ◽  
Qsar Analysis ◽  
Volatile Liquids

Direct determination of butyl-and phenyltin compounds as chlorides using gas chromatography and flame photometric detection

The Analyst ◽  
1996 ◽  
Vol 121 (12) ◽  
pp. 1969 ◽  
Author(s):  
Ga�tane Lespes ◽  
Catherine Carlier-Pinasseau ◽  
Martine Potin-Gautier ◽  
Michel Astruc
Keyword(s):  
Gas Chromatography ◽  
Direct Determination ◽  
Photometric Detection ◽  
Flame Photometric Detection

Direct Determination of Oil/Saline Partition Coefficients

1994 ◽  
Vol 79 (6) ◽  
pp. 1056???1058 ◽  
Author(s):  
Pompiliu Ionescu ◽  
Edmond I Eger ◽  
James Trudell
Keyword(s):  
Partition Coefficients ◽  
Direct Determination

Gas Chromatographic Determination of Pentachlorophenol in Gelatin

1984 ◽  
Vol 67 (2) ◽  
pp. 275-277
Author(s):  
Arnold P Borsetti ◽  
Lee S Thurston
Keyword(s):  
Gas Chromatography ◽  
Liquid Phase ◽  
Electron Capture ◽  
Limit Of Detection ◽  
Direct Determination ◽  
Chromatographic Determination ◽  
Gelatin Matrix ◽  
Limit Of Quantitation ◽  
Acetate Derivative

Abstract A method is described for the determination of pentachlorophenol (PCP) in gelatin. The method employs acid and heat to hydrolyze the gelatin matrix, a base partition and wash for separation and cleanup, and a reacidification and extraction with hexane for direct determination of PCP, without preparation of a derivative, using gas chromatography (GC) with a 1% SP-1240DA liquid phase and a 63Ni electron capture detector. Recoveries averaged 106% for fortifications between 0.02 and 1.0 ppm. The limit of quantitation is 20 ppb. The limit of detection is 4-6 ppb. The method, which has undergone a successful intralaboratory trial, is simple and rapid, and requires only general laboratory reagents and equipment. GC of the acetate derivative of PCP is used for confirmation of identity.

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