scholarly journals Organic and total mercury determination in sediments by cold vapor atomic absorption spectrometry: methodology validation and uncertainty measurements

Química Nova ◽  
2012 ◽  
Vol 35 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Robson L. Franklin ◽  
Jose E. Bevilacqua ◽  
Deborah I. T. Favaro
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Total Mercury ◽  
Absorption Spectrometry ◽  
Mercury Determination ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption ◽  
Uncertainty Measurements

scholarly journals Rapid Food Decomposition by H2O2–H2SO4 for Determination of Total Mercury by Flow Injection Cold Vapor Atomic Absorption Spectrometry

2002 ◽  
Vol 85 (1) ◽  
pp. 149-152 ◽  
Author(s):  
Odair Zenebon ◽  
Alice M Sakuma ◽  
Sergio Dovidauskas ◽  
Isaura A Okada ◽  
Franca D De Maio ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Marine Algae ◽  
Total Mercury ◽  
Absorption Spectrometry ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption ◽  
Limit Of Quantitation

Abstract A mixture of 50% H2O2–H2SO4 (3 + 1, v/v) was used for decomposition of food in open vessels at 80°C. The treatment allowed rapid total mercury determination by flow injection cold vapor atomic absorption spectrometry. Cabbage, potatoes, peanuts paste, hazelnuts paste, oats, tomatoes and their derivatives, oysters, shrimps, prawns, shellfish, marine algae, and many kinds of fish were analyzed by the proposed methodology with a limit of quantitation of 0.86 ± 0.08 μg/L mercury in the final solution. Reference materials tested also gave excellent recovery.

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