Abstract
The wet digestion procedure using catalytic amounts of vanadium pentoxide with sulfuric-nitric acid mixture developed in this laboratory for the analysis of mercury in cereals is extended to other biological substrates and soils. Investigations of the different parameters, such as temperature and concentration of vanadium pentoxide on the oxidation process indicate that 0.20 g of vanadium pentoxide was adequate to degrade 5.0 g of animal feed at 70–75°C. Studies have shown that excellent recoveries of mercury are obtained in spite of the presence of excess sulfur-containing amino acids and of certain metallic ions commonly present in soils. This digestion procedure is compared with that using potassium permanganate-sulfuric acid as oxidant to illustrate the significant advantages of this technique. It is found that less quantities of reagents and shorter duration of digestion are required for vanadium pentoxide oxidation than are necessary for potassium permanganate system. The probable role of vanadium pentoxide in the oxidation process is also discussed.
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References
Analytical Methods Committee Report: Determination of small amounts of mercury in organic matter. Analyst90, 578 (1965).
Barrett, F. R.: Microdetermination of mercury in biological materials. Analyst81, 294 (1956).
Bauer, E. L.: A statistical manual for chemists. 2nd Ed., pp. 71–77, 189. New York: Academic Press (1971).
Deitz, F. D., J. L. Sell, and D. Bristol: Rapid sensitive method for determination of mercury in a variety of biological samples. J. Ass. Offic. Anal. Chem.56, 378 (1973).
Karolinska Institute, Sweden, Symposium, November 4–7 (1968): Maximum allowable concentrations of mercury compounds. Arch. Environ. Health19, 891 (1969).
Kennedy, E. R., R. R. Ruch, and N. F. Shimp: Distribution of mercury in unconsolidated sediments from southern Lake Michigan. Environ. Geol. Notes III State Geol. Surv., Urbana, Illinois (1971).
Latimer, W. M.: Oxidation potentials, 2nd Ed., Chapter I. Englewood Cliffs, N. J.: Prentice-Hall (1952).
Malaiyandi, M., and J. P. Barrette: Determination of submicro quantities of mercury in biological materials. Anal. Letters,3, 579 (1970).
Malaiyandi, M., and J. P. Barrette: Wet oxidation method for the determination of submicro quantities of mercury in cereal grains. J. Ass. Offic. Anal. Chemists55, 951 (1972).
Malaiyandi, M., and M. Lanouette (unpublished results 1974)
Manning, D. C., and F. J. Fernandez: Cobalt spectral interferences in the determination of mercury. Atomic Abs. Newsletter7, 24 (1968).
Miller, V. L., and F. Swanberg, Jr.: Determination of mercury in urine. Anal. Chem.29, 391 (1957).
Rossetti, F. J. C., and H. Rossetti: Hydrolysis of metal ions, XII, The hydrolysis of the VIV ion. Acta. Chem. Scand.9, 1177 (1955).
Sivasankara Pillay, K. K., C. C. Thomas, J. A. Sondel, and C. M. Hyche: Determination of mercury in biological and environmental samples by neutron activation analysis. Anal. Chem.43, 1419 (1971).
Uthe, J. F., F. A. J. Armstrong, and M. P. Stainton: Mercury determination in fish samples by wet digestion and flameless atomic absorption spectrophotometry. J. Fish. Res. Board Canada27, 805 (1970).
Waters, W. A., and J. S. Littler: Oxidation by vanadium (V), cobalt (III) and Manganese (III); in Oxidations in organic chemistry, Part A. K. B. Wiberg (ed), pp. 185–241. New York: Academic Press (1965).
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Malaiyandi, M., Barrette, J.P. Determination of mercury in soils and biological matrices by the vanadium pentoxide digestion procedure. Arch. Environ. Contam. Toxicol. 2, 315–330 (1974). https://doi.org/10.1007/BF02047097
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DOI: https://doi.org/10.1007/BF02047097