Download e-book for iPad: Analysis of Seawater by E. Crompton (Auth.)

By E. Crompton (Auth.)

ISBN-10: 0407016104

ISBN-13: 9780407016101

This e-book covers all elements of the research of seawater together with the main complex actual ideas. Sampling, the decision of anions, disolved gases, atomic absorption, tracking radioactive degrees, non-metallic compounds are all mentioned in flip

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451-481 (1971) 61. T. H. Bulletin of Environmental Contamination and Toxicology, 7, 125 (1972) 62. , Box, J. and Herzberg, S. Journal of the Institute of Petroleum, London, 59, 263 (1973) 63. W. D. Report No. S. National Technical Information Service (1974) 64. A. M. , 233, 91 (1974) 65. N. Fundamental problems in oceanographic analysis. In Analytical Methods in Oceanography (ed. P. ), American Chemical Society, Washington, pp. 1-8 (1975) 66. P. In Chemical Oceanography, Vol. P. Riley and G. Skirrow), Academic Press, London, pp.

Methods for the following three determinations were described by Truesdale [14]: 1. Determination of iodate without pre-oxidation-lodate in the buffered sample is reacted with sulphamic acid (to destroy nitrite) and potassium iodide to produce the iodonium ion I3~ which is determined spectrophotometrically at 350 nm. 2. Determination of iodate with pre-oxidation-Iodine water is added to an acetic acid sodium acetate buffered sample to reoxidize to iodate any iodinecontaining substances produced by reduction of iodate by naturally occurring reducing substances present in the sample.

The calibration graph was rectilinear for 80-200 μg fluoride per litre; the mean standard deviation was ± 10μgΓ 1 at a concentration of 1100 μg fluoride per litre. Spectrophotometric procedures based on the lanthanum-alizarin complex are also described [22]. Photoactivation analysis has also been used to determine fluoride in seawater [23]. In this method a sample and simulated seawater standards containing known amounts of fluoride are freeze-dried, and then irradiated simultaneously and identically, for 20 min, with high-energy photons.

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Analysis of Seawater by E. Crompton (Auth.)


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