Ultra-High Resolution Capillary Gas Chromatography by Using Cryogenic Modulation

2003 ◽  
Vol 56 (3) ◽  
pp. 187 ◽  
Author(s):  
Philip Marriott ◽  
Ruby Ong ◽  
Robert Shellie ◽  
Robert Western ◽  
YaJing Shao ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
High Resolution ◽  
Capillary Gas Chromatography ◽  
Cryogenic Modulation

scholarly journals Sterol and Triterpene Diol Contents of Vegetable Oils by High-Resolution Capillary Gas Chromatography

1999 ◽  
Vol 82 (4) ◽  
pp. 929-935 ◽  
Author(s):  
Robert J Reina ◽  
Kevin D White ◽  
David Firestone
Keyword(s):  
Gas Chromatography ◽  
High Resolution ◽  
Vegetable Oils ◽  
Capillary Gas Chromatography ◽  
Cottonseed Oil ◽  
Olive Pomace ◽  
Evening Primrose ◽  
Olive Oils ◽  
Relative Composition ◽  
Multiple Samples

Abstract An in-laboratory validated method for identification and quantitation of sterols and triterpene diols was used to determine the relative composition of identifiable sterols and triterpene diols in 13 vegetable oils and quantitate these components in multiple samples of 6 vegetable oils: extra virgin olive, pomace olive, corn, cottonseed, canola, and evening primrose oils. Erythrodiol, a triterpene diol present in all olive oils, was also found in cottonseed oil.

Carbon–Foam Chromatographic Separation of Non-o,o´-Chlorine Substituted PCBs from Aroclor Mixtures

1980 ◽  
Vol 63 (4) ◽  
pp. 750-755
Author(s):  
James N Huckins ◽  
David L Stalling ◽  
Jimmie D Petty
Keyword(s):  
Gas Chromatography ◽  
Activated Carbon ◽  
High Resolution ◽  
Polychlorinated Biphenyls ◽  
Polyurethane Foam ◽  
Chromatographic Separation ◽  
Capillary Gas Chromatography ◽  
Carbon Foam ◽  
Ohio River ◽  
Aroclor 1248

Abstract Columns of activated carbon dispersed on shredded polyurethane foam were used to separate non-o,o´-chlorine (Cl) substituted polychlorinated biphenyls (PCBs) from mg quantities of Aroclors 1016, 1242, 1248, 1254, and 1260. Aroclor 1248 contained the highest concentration (3400 μg/g) of highly toxic 3,4,3´,4´tetrachlorobiphenyl (TCB). Lesser amounts of 3,4,3’,4’-TCB were also found in Aroclors 1242 and 1254. However, we were unable to detect 3,4,3’,4’-TCB in Aroclors 1016 and 1260. Varying amounts of the non-o,o´-Cl substituted 3,4,4´-trichlorobiphenyl and 3,4,3´,4´,5´-pentachlorobiphenyl were found in most of the Aroclor mixtures. No residues of 3,4,5,3´,4´,5´-hexachlorobiphenyl were detected in the Aroclor mixtures examined. Using carbon-foam chromatography and high resolution capillary gas chromatography, 0.11 μg 3,4,3´,4´-TCB/g was detected in 3 subsamples of a composite of 5 carp from the Ohio River.

Sign in / Sign up

Export Citation Format

Share Document