Volatile organic matter

In this method volatile organic matter in seawater is concentrated on a Tenax GC solid adsorbent trap and dry-ice trap in series. The trapped organic material is then desorbed and oxidised to carbon dioxide, which is measured with a non-dispersive infrared analyser. A dynamic headspace method was used for the extraction with the assistance of nitrogen purging. Dynamic headspace analysis [184] is an efficient extraction procedure. The efficiency of extraction... 

Corwin JF (1970) Volatile organic matter in seawater. In Hood DW (ed) Organic matter in natural waters, vol. 1. University of Alaska Press, pp 169-180... 

ASTM. 1988. Standard practice for measuring volatile organic matter in water by aqueous-injection gas chromatography - method D 2908-87. In 1988 annual book of ASTM standards. Vol. 11.02. Water II. Philadelphia, PA American Society for Testing and Materials, 46-51. 

During biomass and fuel burning, a complex mixture of ill-characterized volatile organic matter are released into the atmosphere (Andreae and Merlet, 2001). It contributes to the formation of aerosols and fine particles of sizes up to 100 pm. After an estimated lifetime of 7.9 days (Cook and Wilson, 1996), they are either degraded or are removed from the atmosphere by precipitation. However, they can be transported a considerable distance. For example, boreal forest fires contribute substantially to atmospheric BC in the Arctic (Cook and Wilson, 1996), and Antarctica receives BC from biomass burning in the tropics (Wolff and Cachier, 1998). On a global scale the amount of atmospheric emission is estimated with 5-6Tg BC yr 1,... 

Pig. 28. Gaschronmtogramm of volatile organic matter of the Bulawaya stromatolite, Zimbabwe. Pyrene and naphthalene added as internal standards (McKirdy and Hahn, 1982) 5>... 

Lowe (38, 39, 76) points out that normal blood samples contain no volatile organic matter to interfere with flame ionization detectors. Therefore, little or no... 

In a study of large-scale ballast treatment operations in Port Valdez, Alaska (Summer 1978), it was found that the effluent from the gravity separator and the final effluent contained volatile organic matter composed primarily of aromatic hydrocarbons (benzene, toluene, and xylenes), dissolved organic materials of the petroleum nonhydrocarbon... 

Armstrong, F.A. and Boalch, G.T., 1960. Volatile organic matter in algal culture media and seawater. Nature, 185 761—762. 

Corwin, J.F., 1970. Volatile organic matter in seawater. In D.W. Hood (Editor), Organic Matter in Natural Waters. Inst. Mar. Sci., Alaska Occas. Publ., No. 1 169—180. 

Anthracite (see section 14.3.3.3) is widely used in mixed-feed kilns. As much of the volatile organic matter distils at below the dissociation temperature, part of the calorific value is lost and the total heat usage is increased (typically coke usage is in the range 130 to 150 kg/t lime). The volatiles also cause the emission of smoke, which is increasingly becoming environmentally unacceptable. 

The gas thus obtained from dialk possesses a peculiar smell, whidi is due to the presence of small quantities of volatile organic matter always contained in the chalk. In order to prepare a very pure gas, sodium carbonate may he decomposed witir pure dilute sulphuric acid thus —... 

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