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Résultats 201-210 de 286
Processing the "DRIFTEX" data [to study the general surface circulation of the Mediterranean Sea]
1979
Cruzado, A. (Instituto de Investigaciones Pesqueras, Barcelona (Spain))
[Evolution of bacterial populations in the Marseille sewage area [France]]
1979
[Computation methods and models for the dispersion of waste waters in the sea]
1979
Chiriac, V. | Rusu, G. | Dinu, M.
Trajectories and speeds of surface currents near the Egyptian Mediterranean coast as deduced from the movement of surface drifters
1979
Gerges, M.A.
Coastal water quality control - Study of the state of pollution of Alexandria beaches due to sewage discharge [Egypt, Mediterranean Sea]
1979
El-Sharkawi, F.
Atomic absorption spectrophotometric determination of cadmium, copper, lead in organic matter with high molecular weight amine extraction
1979
Matsuzawa, K. (Nagano-ken. Research Inst. for Health and Pollution (Japan))
As high molecular weight amine were able to extract trace cadmium, copper and lead Into an organic phase at the potassium iodide-sulfuric acid, simultaneously, conditions for determination directly organic phase with atomic absorption spectrophotometry were investigated. By setting potassium iodide concentration and sulfuric acid concentration at 0.2M and 3.6 N, respectively, cadmium, copper and lead were extracted with 5v/v% Amberlite LA-2-n-Buthyl acetate solution simultaneously. Under the conditions above described, the extraction rate of cadmium, copper were 100% and its of lead was 98%. The coefficient of variation were proved to be 0.71%, 1.47%, 1. 30%; which were obtained by the 20 repeats of determination with 1 micro g/ml cadmium, copper solution and 5 micro g/ml lead solution With regard to the effect of coexisting ions, alkaline metals, alkaline earths metals, Fe(II), Zn(II), Al(II), Mn(II), Cr(IV), Si(IV), Ni(II), As(III) etc. did not interfere. The method was applied to the determination of cadmium, copper and lead in hair with satisfactory results.
Afficher plus [+] Moins [-]Pollution studies in the Sea of Marmara and the Black Sea
1979
Curi, K.
[Hydrocarbon pollution of western Mediterranean surface waters -Pt. 1: Tar balls]
1979
Ros, J. | Faraco, F.
Towards an understanding of shelf dynamics along the southern coast of Turkey
1979
Unluata, U.A. | Latif, M.A. | Bengu, F. | Akay, H.
Monitoring of coastal areas in Tuscany (Tyrrhenian Sea)
1979
Petrilli, F.L. | Renzi, P. de | Flora, S. de
