Determination of particulate organic nitrogen

Raimbault, P., and Slawyk, G. (1991). A semiautomatic, wet-oxidation method for the determination of particulate organic nitrogen collected on filters. Limnol. Oceanogr. 36, 405-408. 

Libby P.S. and Wheeler P.A. 1994. A wet-oxidation method for determination of particulate organic nitrogen on glass fiber and 0.2 jtm membrane filters. Mar. Chem. 48 31 1. 

Pujo-Pay M. and Raimbault P. 1994. Improvement of the wet-oxidation procedure for simultaneous determination of particulate organic nitrogen and phosphorus collected on filters. Mar. Ecol. Prog. Ser. 105 203-207. 

Ehrhardt M (1976) Determination of particulate organic carbon and nitrogen. In Grasshoff K (ed) Methods of seawater analysis. Verlag Chemie, New York, pp 215-220... 

Pike S.M. and Moran S.B. 1997. Use of Poretics (super R) 0.7 jun pore size glass fiber filters for determination of particulate organic carbon and nitrogen in seawater and freshwater. Mar. Chem. 57 355-360. 

Determination of sulfur dioxide removal efficiency and particulate, sulfur dioxide, and nitrogen oxides emission rates Determination of nitrogen oxides, sulfur dioxide, and diluent emissions from stationary gas turbines Determination of volatile organic compound leaks... 

The determination of total N in a bltered sample excludes the particulate organic nitrogen. With extreme care, particulate nitrogen can be determined as the difference between total N in filtered and unfiltered samples. 

For phytoplankton particulate organic carbon (POC) and particulate nitrogen (PON) determination, some suspended matter was collected on precombusted (450°C) Whatman GF/F filters, dried at 60°C and stored in polystyrene Petri dishes until analysis. POC and PON were analyzed with a Carlo Erba NA 2000 elemental analyzer. The analytical error of the... 

Almost all MAE applications involve off-line procedures, and on-line systems have not been utilized in food and agricultural analyses. Only a few approaches involving an on-line system have been published, for example in the determination of organophosphorus compounds in air particulates (21). In this MAE-GC system, an interface based on solid-phase trapping was used. Methanol was as the extraction solvent, and before the solid-phase trap the extract was diluted with water to enable efficient trapping to a polymeric sorbent. The sorbent was then dried with a nitrogen flow and the trapped analytes were eluted with organic solvent to the GC equipped with a PTV injector. A similar system should be applicable to the analysis of other types of solid samples as well. 

Determination of nitrogen, phosphorus and silicon in particulate and dissolved organic matter... 

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