Sensitive flame ionization detector for the determination of traces of atmospheric hydrocarbons by capillary column gas chromatography

1993 ◽  
Vol 642 (1-2) ◽  
pp. 383-388 ◽  
Author(s):  
Yoshio Tsujino ◽  
Kazuhiro Kuwata
2019 ◽  
Vol 65 (6) ◽  
Author(s):  
Jana Olšovská ◽  
Tomáš Horák ◽  
Karel Štěrba

Furan is considered to have a potential carcinogenic effect on human health. Its presence was found in a number of foods including beer. Thus, it is necessary to have a fast and routine method for its determination. This study describes a procedure meeting these requirements using the head-space technique associated with gas chromatography. A capillary column with the length of 60 m, inner diameter of 0.32 mm and the film thickness of 0.25 μm was used for the determination of furan. A flame-ionization detector (FID) was used for the detection. The characteristics of the procedure are presented.


1984 ◽  
Vol 30 (10) ◽  
pp. 1672-1674 ◽  
Author(s):  
N B Smith

Abstract In this method for detection and quantification of volatile alcohols by capillary gas chromatography, the serum sample is deproteinized, then directly injected into the gas chromatograph with 1-propanol as the internal standard. The capillary column is a 30-m bonded methylsilicone-coated, fused-silica column. With helium as the carrier gas, the injector inlet is set at a split ratio of 1/30 and the average linear velocity in the column is 25 cm/s. Injector and flame-ionization detector temperatures are 280 degrees C, oven temperature 35 degrees C. Chromatography time is less than 3 min.


1974 ◽  
Vol 20 (11) ◽  
pp. 1460-1462 ◽  
Author(s):  
Naresh C Jain ◽  
Thomas C Sneath ◽  
Robert D Budd

Abstract A simple, rapid procedure is described for measuring amphetamine and methamphetamine in urine by gas chromatography, with use of a flame ionization detector. This method is sensitive to subtherapeutic concentrations (0.1 µg/ml or less), and is especially useful in clinical situations where an accurate and quantitative result is needed in less than 30 min. With the method, amphetamine and methamphetamine can be determined as the free bases on a 10% Apiezon L-10% KOH column and as their trifluoroacetamide derivatives on a 3% OV-17 column. This dual analysis eliminates false positives and any interfering substances that may be present in the urine, and is thus a specific method for the two drugs.


1983 ◽  
Vol 66 (5) ◽  
pp. 1067-1073
Author(s):  
Sandra L Varner ◽  
Charles V Breder ◽  
Thomas Fazio

Abstract Migration studies were conducted to determine the quantity of styrene that migrates from polymers into fatty foods, specifically margarine. Azeotropic distillation was used to isolate styrene from the margarine. Headspace gas chromatography with a Chromosorb 104 column and a flame ionization detector was used for quantitation. The quantitation limit for the method was about 25 ppb (wt/wt) styrene in margarine. On the average, greater than 90% of the styrene was recovered. Several commercial margarines were examined. The method and results of the migration studies are presented. There was no detectable migration of styrene into margarine.


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