Add to ORKGResults for the direct determination of trace amounts of Pb and Cd in Antarctic and Greenland ancient ice and recent snow by laser-excited atomic fluorescence spectrometry (LEAFS) are presented. The whole procedure starting from field sampling, mechanical decontamination of the samples in an ultra-clean laboratory and final analysis of the decontaminated samples is described. The measured concentrations varied in the ranges 0.1–3 pg ml^(–1) for Cd and 0.3–30 pg ml^(–1) for Pb. The results for direct analysis by LEAFS agree favourable with those obtained by isotope dilution mass spectrometry and electrothermal atomic absorption spectrometry, which require time-consuming pre-treatment and pre-concentration stages
International audienceMeasurements of Pb isotope ratios in ice containing sub-pg g−1 concentrations ...
An improved decontamination method and ultraclean analytical procedures have been developed to minim...
During the last decades, ice cores drilled in Antarctica and in Greenland have provided time series ...
Results for the direct determination of trace amounts of Pb and Cd in Antarctic and Greenland ancien...
We present here the results of the first direct measurements of Pb and Cd in Antarctic and Greenland...
Concentrations of lead (Pb) have been directly measured by laser excited atomic fluorescence spectro...
Compared to the Antarctic and Greenland, the Canadian Arctic has seen extremely few trace metal stud...
In this paper, we present new detailed data on the trace metal content of more than 200 shallow pola...
This work shows that it is now possible to get reliable data on the occurrence of numerous heavy met...
The isotopic composition. of Pb and the concentrations of Pb, Ba and Bi were measured in selected ic...
Measurements of Pb isotope ratios in ice containing sub-pg g(-1) concentrations are easily compromis...
Metals are natural constituents of the abiotic and biotic components of all ecosystems, and under na...
Application of electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS)...
International audiencePb, Zn, Cd and Cu have been measured using ultraclean procedures in various se...
International audienceMeasurements of Pb isotope ratios in ice containing sub-pg g−1 concentrations ...
An improved decontamination method and ultraclean analytical procedures have been developed to minim...
During the last decades, ice cores drilled in Antarctica and in Greenland have provided time series ...
Results for the direct determination of trace amounts of Pb and Cd in Antarctic and Greenland ancien...
We present here the results of the first direct measurements of Pb and Cd in Antarctic and Greenland...
Concentrations of lead (Pb) have been directly measured by laser excited atomic fluorescence spectro...
Compared to the Antarctic and Greenland, the Canadian Arctic has seen extremely few trace metal stud...
In this paper, we present new detailed data on the trace metal content of more than 200 shallow pola...
This work shows that it is now possible to get reliable data on the occurrence of numerous heavy met...
The isotopic composition. of Pb and the concentrations of Pb, Ba and Bi were measured in selected ic...
Measurements of Pb isotope ratios in ice containing sub-pg g(-1) concentrations are easily compromis...
Metals are natural constituents of the abiotic and biotic components of all ecosystems, and under na...
Application of electrothermal vaporization inductively coupled plasma mass spectrometry (ETV-ICP-MS)...
International audiencePb, Zn, Cd and Cu have been measured using ultraclean procedures in various se...
International audienceMeasurements of Pb isotope ratios in ice containing sub-pg g−1 concentrations ...
An improved decontamination method and ultraclean analytical procedures have been developed to minim...
During the last decades, ice cores drilled in Antarctica and in Greenland have provided time series ...