Effectiveness of palladium as a chemical modifier for the determination of lead in biological materials and foodstuffs by graphite furnace atomic absorption spectrometry

1992 ◽  
Vol 343 (6) ◽  
pp. 526-531 ◽  
Author(s):  
Wim Penninckx ◽  
Desire L. Massart ◽  
Johanna Smeyers-Verbeke
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Biological Materials ◽  
Chemical Modifier ◽  
Graphite Furnace Atomic Absorption

Determination of gadolinium in biological materials using graphite furnace atomic absorption spectrometry with a tantalum boat after solvent extraction

1991 ◽  
Vol 63 (5) ◽  
pp. 423-427 ◽  
Author(s):  
Lian. Liang ◽  
Patrick C. D'Haese ◽  
Ludwig V. Lamberts ◽  
Frank L. Van de Vyver ◽  
Marc E. De Broe
Keyword(s):  
Solvent Extraction ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Biological Materials ◽  
Graphite Furnace Atomic Absorption

Sequence Determination of Cd and Pb in Honey by Incomplete Digestion-High Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry

2014 ◽  
Vol 511-512 ◽  
pp. 22-27 ◽  
Author(s):  
Hui Liu ◽  
Shang Long Chen ◽  
Chao Li ◽  
Tong Xiang Li ◽  
Yong Hua Wu ◽  
...  
Keyword(s):  
High Resolution ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Chemical Modifier ◽  
Sequence Determination ◽  
Continuum Source ◽  
Graphite Furnace Atomic Absorption

A fast and effective method was developed for sequence determination of Cd and Pb in honey by incomplete digestion-high resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GFAAS). Cd and Pb in some honey samples using incomplete digestion treatment were measured by HR-CS GFAAS. The factors influencing determination were investigated by single factor experimental design. The optimal determination conditions were found as follows: NH4H2PO4(10mg/mL) were added as a chemical modifier with the volume of 5μL; pyrolysis temperature 600°C(Cd) and 800°C(Pb); atomization temperature 1100°C(Cd) and 1400°C(Pb). Detection limits (3σ,n=12) were found to be 0.06 μg/L and 0.78 μg/L for Cd and Pb, respectively. The precisions (RSD) for 6 replicate measurements of Cd and Pb in honeys were 3.8% and 2.6%, respectively. Recoveries of added Cd and Pb were varied from 95% to 103%. Therefore, the proposed method was rapid, accurate and stable with a high practical value. It provided scientific basis for multi-element sequence determination in food.

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