Further Reading

Cooke M, Nickless G, Povey A and Roberts DJ (1979) Polychlorinated biphenyls, polychlorinated naphthalenes and polynuclear aromatic hydrocarbons in Severn estuary (UK) sediments. Science of Total Environment 13: 17-20.

Cooke M, Roberts DJ and Tillett ME (1980) Poly-chlorinated naphthalenes, polychlorinated biphenyls and DDT residues in British birds of Prey. Science of Total Environment 15: 237-246. DunnivantFM and Elzerman AW (1988) Determination of polychlorinated biphenyls in sediments, using sonication extraction and capillary column gas chromatography-electron capture detection with internal standard calibration. Journal of the Association of the Official Analytical Chemistry 71: 551-556. Filek G, Bergamini M and Lindner W (1995) Steam distillation-solvent extraction, a selective sample enrichment technique for the gas chromatographic-electron capture detection of organochlorine compounds in milk powder and other milk products. Journal of Chromatography A 712: 355-364. Glausch A, Blanch GP and Schurig V (1996) Enantioselec-tive analysis of chiral polychlorinated biphenyls in sediments samples by multidimensional gas chromatogra-phy-electron capture detection after steam distillation-solvent extraction and sulfur removal. Journal of Chromatography 723: 399-404. Godefroot M, Stechele M, Sandra P and Verzele M (1982) A new method for the quantitative analysis of organo-

chlorine pesticides and polychlorinated biphenyls. Journal of High Resolution Chromatography Communications 5: 75-79.

Hemmerling C, Risto C, Augustyniak B and Jenner K (1991) Untersuchungen zur aufbereitung von Lebensmittel- und Umwelproben fur die ruckstandsbestimmung von pestiziden und PCB mittels kontinuierlicher wasserdampfdestillation. Die Nahrung 35: 711-719.

Lee HB, Peart TE, Bennie DT and Maguire RJ (1997) Determination of nonylphenol polyethoxylates and their carboxylic acid metabolites in sewage treatment plant sludge by supercritical carbon dioxide extraction. Journal of Chromatography A 785: 385-394.

Meissner C and Engelhardt H (1999) Trace analysis of surfactants derived from fatty alcohols. II. Hydrolysis and enrichment techniques. Chromatographia 49: 12-16.

Nash RG (1984) Extraction of pesticides from environmental samples by steam distillation. Journal of the Association of the Official Analytical Chemistry 67: 199-203.

Onuska FI and Terry KA (1985) Determination of chlorinated benzenes in bottom sediments samples by WCOT column gas chromatography. Analytical Chemistry 57: 801-805.

Rajendran N and Venugopalan VK (1991) Bioconcentration of endosulfan in different body tissues of estuar-ine organisms under sublethal exposure. Bulletin of Environmental Contamination and Toxicology 46: 151-158.

Ramos L, Blanch GP, Hernandez L and Gonzalez MJ (1995) Recoveries of organochlorine compounds (PCBs, PCDDs and PCDFs) in water using steam distillation-solvent extraction at normal pressure. Journal of Chromatography A 690: 243-249.

Ramos L, Tabera J, Hernandez L and Gonzalez MJ (1998) Selective extraction of polychlorinated biphenyls from dairy products using steam distillation solvent extraction at normal pressure. Analytica Chimica Acta 376: 313-323.

Rijks J, Curvers J, Noy T and Cramers C (1983) Possibilities and limitations of steam distillation-extraction as a preconcentration technique for trace analysis of or-ganics by capillary gas chromatography. Journal of Chromatography 279: 395-397.

Seidel V and Lindner W (1993) Universal sample enrichment technique for organochlorine pesticides in environmental and biological samples using a redesigned simultaneous steam distillation-solvent extraction apparatus. Analytical Chemistry 65: 3677-3683.

Townsend DI, Lamparski LL and Nestrick TJ (1989) Laboratory simulation and potential mechanisms explaining PCDD congener group ratio behaviour on partic-ulates from combustion sources. Chemosphere 16: 1753-1757.

Veith GD and Kiwus LH (1997) An exhaustive steam-distillation and solvent-extraction unit for pesticides and industrial chemicals. Bulletin of Environmental Contamination and Toxicology 17: 631-636.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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