Determination of mercury in size fractionated road dust samples by flow injection-cold vapor-atomic absorption spectrometry

2012 ◽  
Vol 105 ◽  
pp. 77-82 ◽  
Author(s):  
Agustín Londonio ◽  
Fabián Fujiwara ◽  
Raúl Jiménez Rebagliati ◽  
Darío Gómez ◽  
Patricia Smichowski
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Road Dust ◽  
Absorption Spectrometry ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption

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.

scholarly journals Determination of Mercury in Seafood by Flow Injection–Cold Vapor Atomic Absorption Spectrometry after Microwave Digestion: NMKL Interlaboratory Study

2002 ◽  
Vol 85 (3) ◽  
pp. 626-631 ◽  
Author(s):  
Kaare Julshamn ◽  
Jan Brenna ◽  
B Åsman ◽  
A Ekman ◽  
A El-Ghauoui ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flow Injection ◽  
Absorption Spectrometry ◽  
Method Performance ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption ◽  
Relative Standard ◽  
Standard Deviations

Abstract Ten laboratories participated in an interlaboratory method-performance (collaborative) study of a method for the determination of mercury in foods of marine origin by flow injection–cold vapor atomic absorption spectrometry after wet digestion using a microwave oven technique. The study was preceded by a training round of samples of known identity. The method was tested on a total of 7 seafood products: blue mussel (Mytilus edulis), cod muscle (Gadus morhua), crab (Cancer pagurus), scampi (Nephrops norwegicus), black scabbard fish (Aphnopus carbo), longnose velvet dogfish (Centroscymus crepidater), and Portuguese dogfish (Cenbroscymus coelolepis) with mercury concentrations of 0.14, 0.24, 0.35, 0.59, 1.42, 4.2, and 13.2 μg/g, respectively. The materials were presented to the participants in the study as blind duplicates, and the participants were asked to perform single determinations on each sample. Repeatability relative standard deviations (RSDr) for mercury ranged from 2.4 to 14.0%. Reproducibility relative standard deviations (RSDR) ranged from 7.7 to 16.6%. HORRAT values for all samples were <1.0.

Sign in / Sign up

Export Citation Format

Share Document