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Resultados 281-290 de 322
The influence of nitrogen fertilization on assimilatory apparatus and growth increment of spruce growing in different densities
1999
Pokorny, R. | Salanska, P. (Akademie Ved, Brno (Czech Republic). Ustav Ekologie Krajiny)
Marine pollution and effluent management
1999
Henze, M. | Al-Muzaini, S (Saleh) | Hamoda, M. F. (Mohamed F)
The European critical levels for ozone: improving their usage Texto completo
1999
Grünhage, Ludger | Jäger, Hans-Jürgen | Haenel, Hans-Dieter | Löpmeier, Franz-Josef | Hanewald, Klaus
Fishery harbour manual on the prevention of pollution
1999
Sciortino, J. A. | Ravikumar, R.
Behavior of EPN with mice to explain the sudden death of Bombycille
1999
Yamamoto, A. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Tsukioka, T. | Yoshida, T. | Sato, M. | Maruyama, S.
Survey of chemical substances in freshwater fish
1999
Terasawa, J. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Miyagawa, A. | Tsukioka, T. | Sato, M.
Behavior of airborne halocarbons in urban and highland areas of Nagano prefecture [Japan]
1999
Sasai, H. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Katsuno, T. | Nomizo, H. | Satsumabayashi, H.
Proceedings of National Seminar on Environmental Pollution and Water Resources Management | Environmental pollution and water resources management
1999
Chand, Satish | Tiwari, S. N. | Prasad, S. C.
Forest growth responses to the pollution climate of the 21st century
1999
Sheppard, L. J. (Lucy J) | Cape, J. N.
Determination of aliphatic lower amines in environmental samples
1999
Tsukioka, T. (Nagano-ken. Research Inst. for Health and Pollution (Japan))
A micro analytical method has been established for aliphatic lower primary and secondary amines in environmental water and sediment. Amines were distilled and allowed to react with benzenesulfonyl chloride under an alkaline condition. The derivatized compounds were extracted with benzene under an acidic condition and subjected to a determination by GC/MS. This method has been successfully applied for a simultaneous determination of primary and secondary amines with recovery over 80%, except for methylamine, and C.V. below 7%, except for methyl and dimethyl amines; moreover, the detection limit were 0.1 micro g/L for all of the amines determinated. This method is excelent also in sensitivity, is sufficiently applicable to environmental samples.
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