A rapid method for the determination of mercury in mainstream cigarette smoke by two-stage amalgamation cold vapor atomic absorption spectrometryPresented at 55th Tobacco Science Research Conference, Greensboro, NC, USA, September 2001.

2002 ◽  
Vol 17 (7) ◽  
pp. 710-715 ◽  
Author(s):  
Michael J. Chang ◽  
Reta L. McDaniel ◽  
John D. Naworal ◽  
David A. Self
Keyword(s):  
Atomic Absorption ◽  
Cigarette Smoke ◽  
Rapid Method ◽  
Science Research ◽  
Two Stage ◽  
Cold Vapor ◽  
Research Conference ◽  
Cold Vapor Atomic Absorption ◽  
Mainstream Cigarette Smoke

scholarly journals Determination of Mercury in Mainstream Cigarette Smoke by Conventional and Amalgamation Cold Vapor Atomic Absorption Spectrometry

2001 ◽  
Vol 19 (5) ◽  
pp. 267-276 ◽  
Author(s):  
RL McDaniel ◽  
KM Torrence ◽  
DA Self ◽  
MJ Chang
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Gas Phase ◽  
Cigarette Smoke ◽  
Absorption Spectrometry ◽  
Mainstream Smoke ◽  
Particulate Phase ◽  
Cold Vapor Atomic Absorption ◽  
Mainstream Cigarette Smoke

AbstractA method for differentiation of gas- and particulate-phase mercury in mainstream cigarette smoke was developed using electrostatic precipitation (EP) as the trap for the particulate phase and impingers containing acidic potassium permanganate solution as the trap for the gas-phase portion. The mercury collected from the gas phase was analyzed by conventional cold vapor atomic absorption spectrometry (CVAAS) and the particulate phase was analyzed by gold amalgamation CVAAS. Cigarettes were smoked under two smoking regimes, FTC (35-mL puff volume, 2 s puff duration and one puff every 60 s) and an alternative (45-mL puff volume, 2 s puff duration, one puff every 30 s and 50% of any ventilation holes blocked) currently recommended by the Massachusetts Department of Health. For the 1R4F reference cigarette smoked under the FTC smoking regime, the mercury found in the particulate phase was less than 0.2 ng/cig, compared with 4.9 ng/cig in the gas phase. By changing smoking parameters, the mercury concentration in mainstream smoke was found to change proportional to the delivery of cigarette smoke condensate (CSC) for the same type of cigarette. However, the mercury level for different types of cigarettes smoked under the same smoking parameters had no linear relationship with CSC delivery. Spiked recovery was 98% AA± 8% for gas-phase mercury and 97% AA± 2% for the particulate phase. These results indicate that the analytical method developed is suitable for the determination of mercury in mainstream smoke. For routine analytical work in a smoking laboratory, only the gas phase needs to be analyzed for determination of mercury in mainstream smoke because the amount of mercury in the particulate phase is negligible.

Modified Procedure for Determining Mercury in Coal by Cold Vapor Atomic Absorption Spectrophotometry

1973 ◽  
Vol 56 (6) ◽  
pp. 1509-1510
Author(s):  
Fa-Chun Lo ◽  
Brian Bush
Keyword(s):  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
Particle Sizes ◽  
Cold Vapor ◽  
Absorption Spectrophotometry ◽  
Cold Vapor Atomic Absorption

Abstract The combustion procedure previously described for the determination of mercury in coal by cold vapor atomic absorption spectrophotometry has been modified to permit samples to be analyzed more rapidly and with better precision. A coefficient of 8.3% was obtained for the analysis of 7 samples containing 0.1 ppm mercury. In addition a greater variety of types and particle sizes of coal can be analyzed by the modified procedure.

Improved Apparatus for Rapid Mercury Determination by Cold Vapor Atomic Absorption Spectrometry

1983 ◽  
Vol 66 (5) ◽  
pp. 1117-1120
Author(s):  
Lawrence Kupchella ◽  
Augusta Syty ◽  
John J Mahfood
Keyword(s):  
Atomic Absorption ◽  
Analytical Signal ◽  
Absorption Spectrometry ◽  
Water Quality Control ◽  
Injection Port ◽  
Cold Vapor ◽  
Cold Vapor Atomic Absorption ◽  
Relative Standard ◽  
Atomic Absorption Spectrometric

Abstract A glass reaction vessel is described and the convenience and simplicity of its use in cold vapor atomic absorption spectrometric determination of mercury are pointed out. The vessel is easy to construct and requires only 15 s for collection of the analytical signal. It provides for continuous flow of carrier gas, and contains a septum-covered sample injection port, a buret for rapid introduction of reagent, and a drain stopcock. Using this apparatus, the relative standard deviation is 2.9% at the 40 ng Hg/mL level. The detection limit is 1 ng/mL. Applicability of the apparatus is proved by analysis of 3 commercial waste water quality control samples.

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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