By E. Crompton (Auth.)
This booklet covers all facets of the research of seawater together with the main complex actual thoughts. Sampling, the selection of anions, disolved gases, atomic absorption, tracking radioactive degrees, non-metallic compounds are all mentioned in flip
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310 pages. Hardcover with dirt jacket. Fisheries learn Board of Canada.
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Dodecylbenzenesulphonate is added and the mixture extracted for 2 min with 50 ml carbon tetrachloride; 75ml acetone and 10ml 0 . 1 M hydrochloric acid are added to the separated organic layer and the azo-dye back-extracted into the acid. The extinction of the acid layer is measured at 543 nm in a 2 cm cell. 7ng atom nitrite-N per litre. Gianguzza and Orecchio  have carried out comparative trials of various methods for estimating nitrites in seawaters. These workers compared a method using sulphanilic acid/alpha-naphthylamine complexes, with a method using sulphanilamide/N(l-naphthyl) ethylenediamine complexes for the determination of nitrites in saline waters.
Le Corre and Treguer  developed an automated procedure based on oxidation of the ammonium ion to nitrite by hypochlorite in the presence of sodium bromide followed by spectrophotometric determination of the nitrite. The validity of automatic analysis of ammonium nitrogen in seawater was tested. 02. This method was compared with an automated method for the determination of ammonia as indophenol blue. The results from the two methods are in good agreement. Nitrite 47 Urea and amino acids interfere in this procedure.
Et al. Accurate Measurement of Trace Metals in Sea water: an Intercomparison of Sampling Devices and Analytical Techniques using CEPEX Enclosure of Sea water. Unpublished manuscript report, NATO study funded by NATO Scientific Affairs Division (1979) 38. A. P. Analytica Chimica Acta, 84, 363 (1976) 39. I. G. Analytica Chimica Acta, 80, 58 (1972) 40. , Magnusson, B. and Westerlund, S. Analytica Chimica Acta, 98, 47 (1978) 41. Otsuki, A. and Hanya, T. Limnology and Oceanography, 87, 248 (1972) 42.
Analysis of Seawater by E. Crompton (Auth.)