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Resultados 271-280 de 315
Field and growth characteristics of Norway spruce selection and virgin forests in the Oravske Beskids
1999
Saniga, M. (Technicka Univ., Zvolen (Slovak Republic). Lesnicka Fakulta)
Basic geological and geomorphological features of the National reserve Knehyne - Certuv Mlyn
1999
Kirchner, K. (Akademie Ved, Brno (Czech Republic). Ustav Geoniky)) | Krejci, O.
Growth changes of advance growth in mountain forest with rowan component
1999
Tesar, V. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka Fakulta) | Bajza R.
Supra-regional biocentre Knehyne in the Beskids biogeographical region
1999
Bucek, A. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)
Analysis of the air temperature in minispheres
1999
Tomaskova, K. | Roznovsky, J. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)
[Analysis of troughfall in various silvicultural systems]
1999
Kulhavy, J. | Betusova, M. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic). Lesnicka a Drevarska Fakulta)
Fishery harbour manual on the prevention of pollution
1999
Sciortino, J. A. | Ravikumar, R.
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.
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.
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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