Closed-vessel microwave acid digestion of foodstuffs and trace aluminum determination by graphite furnace atomic absorption spectrometry

1994 ◽  
Vol 42 (9) ◽  
pp. 1948-1953 ◽  
Author(s):  
Qing Yang ◽  
Wim Penninckx ◽  
Johanna Smeyers-Verbeke
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Closed Vessel ◽  
Acid Digestion ◽  
Graphite Furnace Atomic Absorption

scholarly journals Determination of Platinum in Wine by Graphite Furnace Atomic Absorption Spectrometry

1997 ◽  
Vol 80 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Carmen Cabrera-Vique ◽  
Pierra-Louis Teissedre ◽  
Marie-Thérèse Cabanis ◽  
Jean-Claude Cabanis
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Standard Addition ◽  
Absorption Spectrometry ◽  
Acid Digestion ◽  
White Wines ◽  
Relative Standard ◽  
Graphite Furnace Atomic Absorption

Abstract A method based on graphite furnace atomic absorption spectrometry (GFAAS) was developed for determining platinum in wine. Wine samples were prepared by microwave acid digestion or dry mineralization. The method of standard addition was used for Pt determination in untreated wine samples and mineralized samples. Analyte modifiers and furnace conditions were optimized. Effects of cations (Mg2+, Ca2+, K+, Na+, and NH|) and anions (PO43, SO42) were tested separately and in combination. Analytical characteristics of the method were optimized for analyte recovery and signal enhancement. Recoveries ranged from 92.5 to 102%, and precision reproducibility relative standard deviation varied from 7.5 to 10%. Red, rosé, and white wines from France were analyzed. Platinum levels found in most wines were very low (<10 μg/L).

Sign in / Sign up

Export Citation Format

Share Document