Quantitative gas chromatographic analysis of amino acids on a short glass capillary column

1973 ◽  
Vol 51 (1) ◽  
pp. 204-219 ◽  
Author(s):  
Jörgen Jönsson ◽  
Julius Eyem ◽  
John Sjöquist
Keyword(s):  
Amino Acids ◽  
Chromatographic Analysis ◽  
Capillary Column ◽  
Glass Capillary Column ◽  
Glass Capillary ◽  
Gas Chromatographic Analysis ◽  
Short Glass

Chiral gas chromatographic analysis of amino acids in fortified wines

2003 ◽  
Vol 57 (S1) ◽  
pp. S207-S212 ◽  
Author(s):  
R. Pätzold ◽  
A. Nieto-Rodriguez ◽  
H. Brückner
Keyword(s):  
Amino Acids ◽  
Chromatographic Analysis ◽  
Gas Chromatographic Analysis ◽  
Fortified Wines

scholarly journals Determination of N-Nitrosodimethylamine in the Smoke of High-Nitrate Tobacco Cigarettes

1973 ◽  
Vol 7 (2) ◽  
Author(s):  
G.P. Morie ◽  
C.H. Sloan
Keyword(s):  
Capillary Column ◽  
Glass Capillary Column ◽  
Gas Chromatograph ◽  
Ionization Detector ◽  
Glass Capillary ◽  
Flame Ionization ◽  
Basic Solutions ◽  
Poly Ethylene ◽  
Gas Chromatographic Method

AbstractA gas chromatographic method was developed for the determination of N-nitrosodimethylamine (NDMA) in cigarette smoke. The NDMA in the smoke of 200 cigarettes was trapped in a solution of sodium hydroxide and separated from most of the smoke components by distillation from acidic and basic solutions. The aqueous solution was extracted for 8 hr. into ethyl ether in a Dean Stark apparatus. To concentrate the solution of NDMA, the ether was distilled until only 5 ml of the solution remained. An aliquot of this solution was analysed by means of a gas chromatograph equipped with a 200-ft. glass capillary column coated with Carbowax 20-M poly(ethylene glycoI). An alkali metal flame ionization detector with a selectivity of 10*/1 for nitrogen compounds to normal hydrocarbons was used. Small amounts (2 ng) of nitrosamines in the presence of large amounts of other compounds were easily detected. N-nitrosodimethylamine-C

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