New PDF release: Analytical Problems

By Boschke F.L.

ISBN-10: 038710402X

ISBN-13: 9780387104027

ISBN-10: 354010402X

ISBN-13: 9783540104025

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Additional resources for Analytical Problems

Example text

One focal point in this analytical expansion of the method represents the toxic, heavy metal thallium. This metal exerts a pronounced toxic effect on mammals. Poisonings by thallium ions normally proceed very slowly; they are accompanied by loss of hair, severe polyneuritic symptoms and tachycardia, and can culminate in paralysis of the central nervous system. Atomic absorption is a common spectroscopic method for the determination of thallium concentrations down to a few ppm TM. The direct determination of thallium from human urine reveals a limit of detection of approximately 30 ppb, whereas direct estimation from plasma and brain tissue is not successful without pretreatment.

Anal. Chem. 44, 2291 (1972) Wasserburg, G. , et aL: Rev. Sci. Instr. 40, 288 (1969) Fermer, N. , et al. : Int. J. Mass Spectrom. Ion Phys. , et al. : Int. Lab. 1978, 78 Dempster, A. : Proc. Phil. Soc. 75, 755 (1935) Hintenberger, H. : Arch. , Conzemius, R. , Svec, H. : 13th Annual Conference on Mass Spectrometry and Allied Topics, St. Louis, 1965 34. , Jacobs, M. , Vossen, P. G. T. : 22nd Annual Pittsburgh Conference on Analytica/ Chemistry and Applied Spectroscopy, 1972 35. Taylor, C. , Taylor, W.

Weinheim: Verlag Chemic 1968, pp. 29-230 20. Webster, R. : Isotope dilution analysis. In: Advances in mass spectrometry. Waldron, J. D. ). Oxford: Pergamon Press 1959, pp. 103-119 21. Lehmann, W. -R. : Angew. Chem. 90, 233 (1978); Angew. Chem. Int. Ed. 17, 221 (1978) 22. Inghram, M. , Chupka, W. A. : Rev. Sci. Instr. 24, 518 (1953) 23. D'Ans-Lax: Taschenbucb fiJr Chemiker und Physiker, Bd. I, 3. Auflage. Berlin, Heidelberg, New York: Springer 1967 24. , Kingdon, K. : Proc. Roy, Sci. 107, 61 (1925) 25.

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Analytical Problems by Boschke F.L.

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