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[Analysis of troughfall in various silvicultural systems]
1999
Kulhavy, J. | Betusova, M. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)
Marine pollution and effluent management
1999
Henze, M. | Al-Muzaini, S (Saleh) | Hamoda, M. F. (Mohamed F)
Fishery harbour manual on the prevention of pollution
1999
Sciortino, J. A. | Ravikumar, R.
The European critical levels for ozone: improving their usage Полный текст
1999
Grünhage, Ludger | Jäger, Hans-Jürgen | Haenel, Hans-Dieter | Löpmeier, Franz-Josef | Hanewald, Klaus
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.
Examination of the similarity of change of patient's number among the areas in Japan using surveillance data
1999
Wada, M. (Nagano-ken. Research Inst. for Health and Pollution (Japan))
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.
Показать больше [+] Меньше [-]Fauna and seasonal fluctuation of house dust mites in Nagano prefecture [Japan]
1999
Nakamura, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan)) | Takaoka, M.
Wetland systems for water pollution control 1998
1999
Cooper, P. F. (Paul F)