Dosage du mercure total et du monométhylmercure dans les organismes et les sédiments marins

by Daniel Cossa (writer), Marina Coquery (writer), Khaled Nakhlé (writer), Didier Claisse (writer)
december 2004
Booklet
160 x 240 format 28 pages In stock
10,10 €

The sampling, the pre-treatment and the analysis of biota and sediment samples are described. The total mercury is determined by atomic absorption spectrophotometry after a dry ashing of the sample and a preconcentration step of elemental mercury on a gold trap. This rapid semi-automatic method is used in the French Mussel Watch Program (RNO) since 1997. For a 20 mg sample the detection limit is 0.007 ng.mg-1 (dry weight) and the reproductibility 7 %. The monomethylmercury determination technique consists of an isolation step by ethylation and chromatography and a quantification step by atomic fluorescence spectroscopy. For a 20 mg sample, the detection limit and the reproductibility are 0.004 ng.mg-1 (dry weight) and 10 %, respectively.

Spéciation du mercure dissous dans les eaux marines Determination of Total, Gaseous and Reactive Mercury, Monomethylmercury and Dimethylmercury

Booklet 10,10 €

Bernard Averty, Daniel Cossa, Jane Bretaudeau, Anne-Sophie Sénard

Language(s): French

Publisher: Ifremer

Co-publisher: MEDD

Edition: 1st edition

Collection: Méthodes d'analyse en milieu marin

Published: 1 december 2004

Reference Booklet: MA0202

EAN13 Booklet: 9782844331052

Format (in mm) Booklet: 160 x 240

Pages count Booklet: 28

Weight (in grammes): 82 (Booklet)

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