Headspace gas chromatographic

Christensen JM, Rasmussen K, Koppen B. 1988. Automatic headspace gas chromatographic method for the simultaneous determination of trichloroethylene and metabolites in blood and urine. J Chromatogr 442 317-323. 

Entz RC, Hollifield HC. 1982. Headspace gas chromatographic analysis of foods for volatile halocarbons. 

Ulberth F (1998) A rapid headspace gas chromatographic method for the determination of the butyric acid content in edible fats. Z Lebensm Unters Forsch 2o6A 305-3oy. 

Neill et al. [22] have described a headspace gas chromatographic method for the determination of carbon dioxide (fugacity) in seawater. This method requires a small water sample (60 ml), and provides for rapid analysis (2 min). 

Low detection limits (low ng/mL) have been achieved using a headspace/gas chromatographic (GC) technique (Seto et al. 1993). The sample is acidified and incubated, and the headspace analyzed by GC with a nitrogen-specific detector (NPD) (Carseal et al. 1993 Levin et al. 1990 Seto et al. 1993). Reported recovery is good (>90%) (Carseal et al. 1993), and precision is good as well (<15% RSD) (Carseal et al. 1993 Levin et al. 1990 Seto et al. 1993). Blood samples may be treated with chloramine T priorto incubation to produce a derivative which can be determined by GC with electron capture detection (ECD). Cyanate and thiocyanate do not interfere in this method (Odoul et al. 1994). The detection limit is 5 pg/L (ppb) precision is good (<15% RSD) (Odoul et al. 1994). 

DeVries JW, Broge JM, Schroeder JP, et al. 1985. Headspace gas chromatographic method for determination of methyl bromide in food ingredients. J Assoc Off Anal Chem 68 1112-1116. 

Vallejo-Cordoba B, Nakai S. 1993. Using a simultaneous factor optimization approach for detection of volatiles in milk by dynamic headspace gas chromatographic analysis. J Agric Food Chem 41(12) 2378-2384. 

Chai, X.S. and Zhu, J.Y. Indirect headspace gas chromatographic method for vapor-liqtrid phase equilibrium study, J. Chromatogr. A, 799(2) 207-214, 1998. 

Przyjazny, A., Janicki, W., Chrzanowski, and Staszewki, R. Headspace gas chromatographic determination of distribution coefficients of selected organosulphur compounds and their dependence of some parameters, J. Chromatogr. A, 280 249-260, 1983. 

Stolyarov BV, Nagimullina AG, Grigor eva TA, et al. 1987. [Generalized headspace gas-chromatographic analysis of waste waters and workplace air.] Zh Anal Khim 42(1) 132-138. (Russian)... 

Page, B.D. Charbonneau, C.F. (1984) Headspace gas chromatographic determination of methylene chloride in decaffeinated tea and coffe, with electrolytic conductivity detection. J. Assoc, off. anal. Chem., (tl. 

Wampler, T.P. 1997. Analysis of food volatiles using headspace—gas chromatographic techniques. In Techniques for Analyzing Food Aroma (R. Mar-sili, ed.) pp. 27-58. Marcel Dekker, New York. 

Leermakers, M., H.L. Nguyen, S. Kurunczi, B. Vanneste, S. Galletti, and W. Baeyens. 2003. Determination of methylmercury in environmental samples using static headspace gas chromatograph and atomic fluorescence detection after aqueous phase ethylation. Anal. Bioanal. Chem. 377 327-333. 

Figure 4.2 shows a typical schematic diagram for a headspace gas chromatographic (HSGC) instrumental setup. Typically, the analyte is... 

Keymeulen, R., De Bruyn, G., and Van Langenhove, H., Headspace gas chromatographic determination of the plant cuticle-air partition coefficients for monocyclic aromatic hydrocarbons as environmental compartment, J. Chromatogr. A, 774, 213-221, 1997. 

Sugita, T Ishiwate H., Kawamura. Y., Baba, T., Umchara, T., Morita, S., Yamada, T. 1996. Headspace Gas Chromatographic Analysis of Residual Volatile Substances in Polystyrene Food Containers. J. Food Hygienic Society of Japan. 36(2) 263—268. 

Morales, M.T., Aparicio, R. and Rios, J.J. (1994) Dynamic headspace gas chromatographic method for determining volatiles in virgin olive oil. J. Chromatogr. A, 668, 455-462. 

T. P. Wampler, Analysis of Food Volatiles Using Headspace-Gas Chromatographic Techniques. In Techniques for Analyzing Food Aroma R. Marsili, Ed. Marcel Dekker New York, 1997 pp 27-58. 

Russo, M.V., Goretti, G., Liberti, A. Direct headspace gas chromatographic determination of dichloromethane in decaffeinated green and roasted coffee. J. Chromatogr. 465, 429 33 (1989)... 

Headspace gas chromatographic analysis is the method of choice for the measurement of methanol. An adaptation of this technique may be used to measure formate, the toxic metabolite of methanol, after esterification to methyl formate. These methods are included in the Chapter 34 Appendix that is found on the book s accompanying Evolve site (http //evolve.elsevier.com/Tiet2/textbook/). An enxy-matic assay based on formate dehydrogenase has also been reported. 

Experiments were conducted on a headspace gas chromatograph (86.10, Dani, Italy), equipped with a headspace sampler (HS 40, Perkin Elmer, Germany), and a FID detector (temperature 240 °C). Samples were equilibrated on a shaker (at 80, 100,70,90 and 80 °C for n-heptane, toluene, acetonitrile, n-propanol and 1,4-dioxane, respectively) for 1 h. The sample was automatically injected (injector temperature 130 °C) with nitrogen as carrier gas. A Hewlett Packard 25 m x 0.32 mm HP-1 0.17-pm column was used for 1,4-dioxane, toluene, n-heptane and acetonitrile, while a Varian 30 m x 0.25 mm CP WAX52CB 0.25-pm column was used for n-propanol. An isothermal programme was run for 8 min. at 80 °C. 

C. Bicchi and D. Joulain, Review Headspace-gas chromatographic analysis of medicinal and aromatic plants and flowers, Flav. Frag. J., 1990, 5, 131-145. 

Ko Y.S. and Baik H.J. (1995) Headspace gas chromatographic analysis and sensory evaluation of various domestic and foreign-made commercial roasted and ground coffees. 16th Int. Colloq. Chem. Coffee (Kyoto, 9-14.4.1995) (ASIC, 1995), 1, 340-50. 

Figure 3.15 Headspace gas chromatographic analysis of a volatile hydrocarbon mixture representing c. 0.3 ng of each component. Chromatographic conditions 30 m x 0.32 mm fused silica column coated with DB-5, 40°C (11 min), then 20°Cmin to 150°C, Ni electron-capture detection. Sample thermostatted at 60°C. Reproduced from Uhler, A. D. and Miller, L. J., Multiple headspace extraction gas chromatography for the determination of volatile hydrocarbon compounds in butter, Journal of Agricultural and Food Chemistry, 36, 772-5, 1988.

Ang, C. Y. W. and Young, L. L. (1989) Rapid headspace gas chromatographic method for assessment of oxidative stability of cooked chicken meat. Journal of the Association of Official Analytical Chemists, 72, 277-81. 

Entz, R. C. and Hollifield, H. C. (1982) Headspace gas chromatographic analysis of foods for volatile halocarbons. Journal of Agricultural and Food Chemistry, 30, 84-8. 

McCown, S. M. and Radenheimer, P. (1989) An equilibrium headspace gas chromatographic method for the determination of volatile residues in vegetables. LC-GC International, 2,28-31. 

Pongracz, G. (1986) Determination of rancidity of edible fats by headspace gas chromatographic detection of pentane. Fette Seifen Anstrichmittel, 88, 383-6. 

Ulberth, F. and Roubicek, D. (1993) Evaluation of a static headspace gas chromatographic method for the determination of lipid peroxides. Food Chemistry, 46, 137-41. 

Sonrce From Development of a headspace gas chromatographic test for the quantification of 1- and 2-bromopropane in human urine, in J. Qiromatogr. 

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