Organic Chemicals - Analysis
Research News and Information

Monday, November 23, 2009

Organic contaminants in sewage sludge (biosolids) and their significance for agricultural recycling.

11 Oct 2009 Organic chemicals discharged in urban wastewater from industrial and domestic sources, or those entering through atmospheric deposition onto paved areas via surface run-off, are predominantly lipophilic in nature and therefore become concentrated in ... Read more...

Identification of transformation products of organic contaminants in natural waters by computer-aided prediction and high-resolution mass spectrometry.

13 Sep 2009 Transformation products (TPs) of organic contaminants in aquatic environments are still rarely considered in water quality and chemical risk assessment, although they have been found in concentrations that are of concern. Since many different TPs ... Read more...

Composition of dissolved organic nitrogen in continental precipitation investigated by ultra-high resolution FT-ICR mass spectrometry.

13 Sep 2009 The atmospheric transport of fixed nitrogen (N) is a critical component of the global N cycle that has been heavily impacted by human activities. It has been shown that organic N is an important contributor to atmospheric N, but its sources and ... Read more...

Latest indexed articles for 'Organic Chemicals - Analysis'

These are the very latest articles for this heading:

• Organic contaminants in sewage sludge (biosolids) and their significance for agricultural recycling. 11 Oct 2009
• Identification of transformation products of organic contaminants in natural waters by computer-aided prediction and high-resolution mass spectrometry. 13 Sep 2009
• Composition of dissolved organic nitrogen in continental precipitation investigated by ultra-high resolution FT-ICR mass spectrometry. 13 Sep 2009
• Using high time resolution aerosol and number size distribution measurements to estimate atmospheric extinction. 30 Aug 2009
• Mathematical explanation for the non-linear hydrophobicity-dependent bioconcentration processes of persistent organic pollutants in phytoplankton. 17 Aug 2009
• Doses and risks from tritiated water and environmental organically bound tritium. 16 Aug 2009
• Exposure to persistent organic pollutants and first-year survival probability in gray seal pups. 13 Aug 2009
• Metabolomic insight into soy sauce through (1)H NMR spectroscopy. 10 Aug 2009
• Highly cross-linked polymeric capillary monoliths for the separation of low, medium, and high molecular weight analytes. 30 Jul 2009
• Disinfection byproduct formation and fractionation behavior of natural organic matter surrogates. 30 Jul 2009
• Ecotoxicological effects of activated carbon addition to sediments. 30 Jul 2009
• Zinc isotopic fractionation: why organic matters. 30 Jul 2009
• Characterizing pore-scale dissolution of organic immiscible liquid in a poorly-sorted natural porous medium. 30 Jul 2009
• Beaver ponds increase methylmercury concentrations in Canadian shield streams along vegetation and pond-age gradients. 30 Jul 2009
• Distribution profiles of selected organic pollutants in soils and sediments of industrial, residential and agricultural areas of South Africa. 28 Jul 2009
• Garnet-filled trails associated with carbonaceous matter mimicking microbial filaments in Archean basalt. 26 Jul 2009
• Determination of fifteen active compounds released from paraffin-based active packaging in tomato samples via microextraction techniques. 19 Jul 2009
• Multibed needle trap devices for on site sampling and preconcentration of volatile breath biomarkers. 13 Jul 2009
• Chemically-resolved volatility measurements of organic aerosol fom different sources. 13 Jul 2009
• Electric arc furnaces for steel-making: hot spots for persistent organic pollutants. 13 Jul 2009

See a longer list of these articles.

Technical information about 'Organic Chemicals'

Definition: A broad class of substances containing carbon and its derivatives. Many of these chemicals will frequently contain hydrogen with or without oxygen, nitrogen, sulfur, phosphorus, and other elements. They exist in either carbon chain or carbon ring form.

Registry Number: 0

Descriptor UI: D009930

Alternative terms: Organic Chemicals; Chemicals, Organic;

Allowable Qualifiers: administration & dosage; adverse effects; analysis; antagonists & inhibitors; blood; cerebrospinal fluid; chemical synthesis; classification; diagnostic use; economics; history; immunology; isolation & purification; metabolism; pharmacokinetics; pharmacology; poisoning; radiation effects; standards; supply & distribution; therapeutic use; toxicity; urine; chemistry; contraindications; agonists;

Tree Number: D02;

History Note: 98; use explode 1967-97

Technical Notes: GEN or unspecified; prefer specific groups or specific chemicals