Evaluation of ammonia as diluent for serum sample preparation and determination of selenium by graphite furnace atomic absorption spectrometry

2002 ◽  
Vol 57 (12) ◽  
pp. 2159-2165 ◽  
Author(s):  
Edwin A. Hernández-Caraballo ◽  
Marcela Burguera ◽  
José L. Burguera
Keyword(s):  
Sample Preparation ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Serum Sample ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Graphite Furnace Atomic Absorption

Evaluation of sample preparation methods for the determination of Cd, Cr and Pb in ceramic tableware by graphite furnace atomic absorption spectrometry

2019 ◽  
Vol 53 (3) ◽  
pp. 436-458 ◽  
Author(s):  
Eliézer Quadro Oreste ◽  
Alexander Ossanes de Souza ◽  
Camila Corrêa Pereira ◽  
Daisa Hakbart Bonemann ◽  
Mariana Antunes Vieira ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Preparation Methods ◽  
Graphite Furnace Atomic Absorption ◽  
Sample Preparation Methods

Trace Analysis of Ultrapure Arsenic and Selenium by Graphite Furnace Atomic Absorption Spectrometry

1994 ◽  
Vol 59 (5) ◽  
pp. 1030-1037 ◽  
Author(s):  
Jiřina Korečková ◽  
Josef Musil
Keyword(s):  
Sample Preparation ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Working Environment ◽  
Graphite Furnace Atomic Absorption ◽  
Expected Values ◽  
Clean Laboratory

A method for the determination of trace and ultratrace impurities like Co, Cu, Cr, Fe and Ni in pure arsenic and selenium by graphite furnace atomic absorption spectrometry has been developed. The sample preparation and the measurement was performed in a clean laboratory with HEPA filtrated air providing a class 100 working environment. For correction on the blank the expected values estimated from a set of blanks were used respecting the distribution (normal or lognormal) tested by Shapiro Wilk test. Detection limits for the whole procedure estimated according to the IUPAC 3 σ definition are somewhat higher for the Se matrix, but still allow the analysis of As and Se samples of 5N5 purity as required.

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