Direct ultratrace determination of cadmium in Antarctic and Greenland snow and ice by laser atomic fluorescence spectrometry

Autor:	Ursula Görlach, Bruno Hutch, S.N. Rudniev, Michael A. Bolshov, Oleg N. Kompanetz, Claude F. Boutron, François M. Ducroz
Rok vydání:	1991
Předmět:	Detection limit Cadmium Spectrometer Fluorescence spectrometry Analytical chemistry chemistry.chemical_element Snow Laser Biochemistry Atomic fluorescence spectrometry Analytical Chemistry law.invention chemistry law Environmental Chemistry Trace analysis Spectroscopy
Zdroj:	Analytica Chimica Acta. 251:169-175
ISSN:	0003-2670
DOI:	10.1016/0003-2670(91)87131-p
Popis:	Results of the first direct measurements of Cd in Antarctic and Greenland ancient ice and recent snow at ultratrace levels by ultrasensitive laser-excited atomic fluorescence spectrometry with electrothermal atomization are presented. Ultratrace concentration Cd standards allowed calibration of the spectrometer down to the 0.1 pg Cd g −1 level. The limit of detection was found to be as low as about 0.01 pg Cd g −1 using 50-μl sample volumes, which corresponds to a minimum detected Cd absolute mass of about 0.5 fg. Various Antarctic and Greenland samples were then analysed without any preliminary preconcentration step.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a43f78754db45c9f693de5bb702bb36a https://doi.org/10.1016/0003-2670(91)87131-p Zobrazit plný text záznamu