Determination of physiological noble metals in human urine using liquid-liquid extraction and Zeeman electrothermal atomic absorption spectrometry

1997 ◽  
Vol 340 (1-3) ◽  
pp. 277-283 ◽  
Author(s):  
Jutta Begerow ◽  
Martina Turfeid ◽  
Lothar Dunemann
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Human Urine ◽  
Noble Metals ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction

Determination of cadmium in human urine by electrothermal atomic absorption spectrometry

2003 ◽  
Vol 491 (2) ◽  
pp. 231-237 ◽  
Author(s):  
Cláudio José de Castro Maciel ◽  
Gilmar Machado Miranda ◽  
Danielle Palma de Oliveira ◽  
Maria Elisa P.B. de Siqueira ◽  
Josianne Nicácio Silveira ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Human Urine ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Absorption Spectrometry

Electrothermal Atomic Absorption Spectroscopic Determination of Chromium in Plant Tissues

1983 ◽  
Vol 66 (4) ◽  
pp. 850-852
Author(s):  
Earle E Cary ◽  
Michael Rutzke
Keyword(s):  
Atomic Absorption ◽  
Hydrofluoric Acid ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Ferric Hydroxide ◽  
Absorption Spectrometry ◽  
Liquid Extraction ◽  
Plant Tissues ◽  
Sample Digestion ◽  
Liquid Liquid Extraction

Abstract This method involves sample digestion in nitric, perchloric, and sulfuric acids. Chromium is concentrated by coprecipitation with ferric hydroxide. Redissolved iron is removed by liquid-liquid extraction, remaining silica is dissolved with hydrofluoric acid, and chromium is determined by electrothermal atomic absorption spectrometry. The sensitivity and detection limits for chromium approach those given by the manufacturers of the various instruments. Recovery studies and analysis of standard materials show that this method is reliable.

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