Numéro
J. Phys. IV France
Volume 04, Numéro C4, Avril 1994
3rd International Conference Laser M2P
Page(s) C4-661 - C4-664
DOI http://dx.doi.org/10.1051/jp4:19944175
3rd International Conference Laser M2P

J. Phys. IV France 04 (1994) C4-661-C4-664

DOI: 10.1051/jp4:19944175

Determination of bismuth down to sub PG/G level in Greenland snow by laser excited atomic fluorescence spectrometry

J.-P. CANDELONE1, M.A. BOLSHOV2, S.N. RUDNIEV2, S. HONG1 and C.F. BOUTRON1, 3

1  Laboratoire de Glaciologie et Géophysique de l'Environnement du CNRS, 54 rue Molière, Domaine Universitaire, BP. 96, 38402 St Martin d'Hères, France
2  Institute of Spectroscopy, Russia Academy of Sciences, Troitzk 142092, Moscow Region, Russia
3  UFR de Mécanique, Université Joseph Fourier de Grenoble, Domaine Universitaire, BP. 68, 38041 Grenoble, France


Abstract
We present here preliminary data on the first direct determination of Bi in Greenland recent snow down to the sub pg/g level by Laser Excited Atomic Fluorescence (LEAF) spectrometry in clean room conditions. Calibration of the spectrometer was achieved using ultralow concentration Bi standards (concentration range 0.05 - 50 pg/g). The limit of detection was found to be 2.5 fg Bi. Various Greenland samples were analysed, giving Bi concentration values in good agreement with these anticipated from the available volcanic emissions data.



© EDP Sciences 1994