Automated trace metal analyses of slurried solid samples by graphite furnace atomic absorption spectrometry with application to sediments and suspended matter collected in natural waters

1989 ◽  
Vol 4 (7) ◽  
pp. 631 ◽  
Author(s):  
Michel Hoenig ◽  
Pierre Regnier ◽  
Roland Wollast
Keyword(s):  
Trace Metal ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Suspended Matter ◽  
Natural Waters ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Solid Samples ◽  
Graphite Furnace Atomic Absorption

scholarly journals Determination of Trace Amounts of Palladium in Water Samples by Graphite Furnace Atomic Absorption Spectrometry after Dispersive Liquid-Liquid Microextraction

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Mohammad Reza Jamali ◽  
Yaghoub Assadi ◽  
Reyhaneh Rahnama Kozani
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Water Samples ◽  
Natural Waters ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Graphite Furnace Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

A simple, rapid, and powerful microextraction technique was used for determination of palladium (II) ion in water samples using dispersive liquid-liquid microextraction (DLLME) followed by graphite furnace atomic absorption spectrometry (GF AAS). The different variables affecting the complexation and extraction conditions such as extraction and disperser solvent type, extraction time, pH, and concentration of chelating agent were optimized. Under the optimum conditions, the calibration graph was linear in the ranges of 0.05–1 μg L−1with detection limit of 0.02 μg L−1. The precision (RSD %) for ten replicate determination at 0.2 μg L−1of palladium was better than 3.5% and the enrichment factor 166.5 was obtained from only 5.0 mL of sample. Under the presence of foreign ions, no significant interference was observed. Finally, accuracy and application of the method were estimated by using test samples of natural waters spiked with different amounts of palladium.

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