scholarly journals Amalgamation performances of gold-coated quartz wool, alumina, silica, sand and carbon fiber for the determination of inorganic mercury in waters by cold vapor atomic absorption spectrometry

2017 ◽  
Vol 72 (5) ◽  
pp. 551-556
Author(s):  
Arzu Erdem Şimşek ◽  
Aslı Erdem Yayayürük ◽  
Talal Shahwan ◽  
Ahmet E. Eroğlu
Keyword(s):  
Carbon Fiber ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Inorganic Mercury ◽  
Absorption Spectrometry ◽  
Silica Sand ◽  
Cold Vapor ◽  
Quartz Wool ◽  
Cold Vapor Atomic Absorption

scholarly journals Automated Microwave Digestion of Certifiable Color Additives for Determination of Mercury by Cold Vapor Atomic Absorption Spectrometry

2001 ◽  
Vol 84 (1) ◽  
pp. 117-122 ◽  
Author(s):  
Nancy M Hepp ◽  
Anne M Cargill ◽  
Wendy B Shields
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Microwave Digestion ◽  
Inorganic Mercury ◽  
Absorption Spectrometry ◽  
Method Detection Limit ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption ◽  
Digestion Technique

Abstract A procedure using an automated microwave flow digestion technique was developed and validated for the digestion of samples of certifiable color additives before mercury determination by cold vapor atomic absorption spectrometry. Recovery studies were performed by spiking most of the color additives subject to batch certification by the U.S. Food and Drug Administration with inorganic mercury (HgNO3) and with organic mercury (CH3HgCl). Successful recoveries of 72–113% Hg added at the 1 μg/g level were obtained. A method detection limit of 0.2μg Hg/g was estimated from a Hg-spiked FD&C Yellow No. 6 sample. At the specification level of 1 ppm Hg (1 μg Hg/g), the 95% confidence interval was ± 0.2 ppm (0.2 μg Hg/g).

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.

Determination of thiolic compounds as mercury complexes by cold vapor atomic absorption spectrometry and its application to wines

Talanta ◽  
2008 ◽  
Vol 74 (4) ◽  
pp. 936-943 ◽  
Author(s):  
Emilia Bramanti ◽  
Rosa Cavallaro ◽  
Massimo Onor ◽  
Roberto Zamboni ◽  
Alessandro D’Ulivo
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption ◽  
Mercury Complexes
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