Atomic absorption spectrometric determination of mercury in soil standard reference material following microwave sample pretreatment

1995 ◽  
Vol 119 (1-2) ◽  
pp. 137-146 ◽  
Author(s):  
Ewa Bulska ◽  
Wolfgang Kandler ◽  
Piotr Pasławski ◽  
Adam Hulanicki
Keyword(s):  
Reference Material ◽  
Atomic Absorption ◽  
Standard Reference Material ◽  
Sample Pretreatment ◽  
Atomic Absorption Spectrometric

scholarly journals Simultaneous determination of iron and copper in children's sera by FAAS

2011 ◽  
Vol 61 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Svjetlana Luterotti ◽  
Tončica Kordić ◽  
Slavica Dodig
Keyword(s):  
Atomic Absorption ◽  
Simultaneous Determination ◽  
Sample Pretreatment ◽  
Single Step ◽  
Design Experiment ◽  
New Approach ◽  
Flame Atomic Absorption ◽  
Reference Methods ◽  
Atomic Absorption Spectrometric

Simultaneous determination of iron and copper in children's sera by FAASA new and simple flame atomic-absorption spectrometric (FAAS) method is proposed for simultaneous determination of iron and copper in children's sera. It is based on single-step sample pretreatment (deproteinization with 3 mol L-1HCl, ratio 1:1) and single-step calibration using 1.5 mol L-1HCl standard. During method's optimization a short multifactorial design experiment was used. The proposed method assures accuracy, sensitivity and precision comparable to that of the reference methods. The new approach is simple and time-, labour- and serum-saving, the latter being especially important in pediatric diagnostics.

scholarly journals Selective Preconcentration/Separation of Copper(II), Iron(III), and Lead(II) as Their N-Benzoyl-N,N-Diisobutylthiourea Chelates on Amberlite XAD-16 Resin

2010 ◽  
Vol 93 (2) ◽  
pp. 720-724 ◽  
Author(s):  
Mustafa Soylak ◽  
I Afsin Kariper
Keyword(s):  
Reference Material ◽  
Natural Water ◽  
Standard Reference Material ◽  
Alkaline Earth ◽  
Rice Flour ◽  
Separation Procedure ◽  
Interference Effects ◽  
Flame Atomic Absorption ◽  
Atomic Absorption Spectrometric

Abstract A preconcentration/separation procedure for copper(II), iron(III), and lead(II) ions has been established for use prior to their flame atomic absorption spectrometric determination. The presented procedure is based on adsorption of analyte ions on Amberlite XAD-16 resin as their N-benzoyl-N,N-diisobutylthiourea chelates. The influence of analytical parameters including pH of the solutions and type of eluent on the recoveries of Cu(II), Fe(III), and Pb(II) ions was investigated. The recoveries of the analytes were generally >95. No interference effects were observed from alkaline, earth alkaline, or transition metals on the recoveries of the studied metals. The LODs based on 3 were 1.9 g/L for Cu, 5.9 g/L for Fe, and 3.1 g/L for Pb. Validation of the procedure was carried out by analyzing standard reference material 1568a (rice flour). The procedure was applied to the determination of analytes in natural water samples.

Determination of Arsenic and Selenium in Environmental and Agricultural Samples by Hydride Generation Atomic Absorption Spectrometry

1988 ◽  
Vol 71 (6) ◽  
pp. 1090-1093 ◽  
Author(s):  
J Wilson Hershey ◽  
Timothy S Oostdyk ◽  
Peter N Keliher
Keyword(s):  
Reference Material ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Standard Reference Material ◽  
Environmental Samples ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Cation Exchange Resins ◽  
Exchange Resins

Abstract Agricultural and environmental samples are digested with acid, and arsenic and selenium are determined using hydride generation atomic absorption spectrometry. Interelement interferences are eliminated by high acid concentrations or cation-exchange resins. Agreement with standard reference material is excellent. The technique is also applied to actual samples

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