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Download PDF by Carl-Gustaf Elinder, Lars Gerhardsson, Guenter Oberdoerster: Biological Monitoring of Toxic Metals

By Carl-Gustaf Elinder, Lars Gerhardsson, Guenter Oberdoerster (auth.), Thomas W. Clarkson, Lars Friberg, Gunnar F. Nordberg, Polly R. Sager (eds.)

ISBN-10: 0306428091

ISBN-13: 9780306428098

ISBN-10: 1461282667

ISBN-13: 9781461282662

ISBN-10: 1461309611

ISBN-13: 9781461309611

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Extra info for Biological Monitoring of Toxic Metals

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The data are still incomplete and the normal salivary concentrations of metals in healthy populations are still not available. The relationship between concentrations in saliva and plasma has not been established. Metabolic pathways, including other excretion routes, may determine the suitability of saliva as a medium for biological monitoring of metals. Collection of saliva is by expectoration into metal-free tubes; collection devices such as the parotid cup or the Brock-Brotman collector may be used to avoid contamination especially by mercury from amalgam tooth fillings.

Intervening steps include: 1) sample collection, storage and preparation for analysis, 2) establishment and use of an adequate quality assurance control framework, 3) measurement of the element's concentration by some type of instrument using quantitation methods and 4) recording of the value obtained. Details relating to specific biological media are set forth above in Section 5 and various 20 aspects of quality assurance/control are discussed in Section 7. In this section the methodologies for the quantitative analysis of metals in biological media are discussed.

Because of the abundance of aluminum in the environment and its widespread use, there is a major risk of sample contamination. Due to the inherent analytical problems, the reported "normal levels" of aluminum in blood and plasma vary considerably from <2 to about 40 ~g/l even when measured with what are commonly regarded as reliable methods. The blood and serum concentrations of aluminum are markedly increased in patients with uremia, and in particular in patients suffering from dialysis 33 encephalopathy (from 100 to 1000 ~g A1/1).

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Biological Monitoring of Toxic Metals by Carl-Gustaf Elinder, Lars Gerhardsson, Guenter Oberdoerster (auth.), Thomas W. Clarkson, Lars Friberg, Gunnar F. Nordberg, Polly R. Sager (eds.)

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