Results 241 to 250 of about 7,299,732 (297)

Bioaccumulation of Total and Methyl Mercury by Arthropods

Bulletin of Environmental Contamination and Toxicology, 2008
Three arthropods, Locusta migratoria manilensis, Acrida chinensis, and Paraten-odera sinensis were selected to study the bioaccumulation of total and methyl mercury. Concentrations of total mercury in the tissues of Locusta migratoria manilensis and Acrida chinensis were 0.013-0.154 and 0.009-0.138 mg/kg, respectively, while those of methylmercury were
D-M, Zheng, Q-C, Wang, Z-S, Zhang, N, Zheng, X-W, Zhang   +4 more
openaire   +2 more sources

Determination of total mercury in sediments and soils

The Analyst, 1972
A highly sensitive and precise procedure has been developed for the quantitative determination of total mercury in sediments and soils. Undried samples are treated with concentrated nitric and sulphuric acids, potassium permanganate and potassium persulphate in order to digest and oxidise all forms of mercury to mercury (II) ions, which are ...
I K, Iskandar, J K, Syers, L W, Jacobs, D R, Keeney, J T, Gilmour   +4 more
openaire   +2 more sources

Total Mercury, Inorganic Mercury and Methyl Mercury Determination in Red Wine

Food Analytical Methods, 2011
This study deals with the development of a method for total Hg, inorganic Hg and methylmercury (MeHg) determination in red wine by using flow injection-cold vapour generation–inductively coupled plasma mass spectrometry (FI-CVG-ICP-MS) and gas chromatography-ICP-MS (GC-ICP-MS). For Hg speciation analysis, a derivatization step was carried out using a 1%
Valderi Luiz Dressler, Clarissa Marques Moreira Santos, Fabiane Goldschmidt Antes, Fabrina Regia Stum Bentlin, Dirce Pozebon, Erico Marlon Moraes Flores   +5 more
openaire   +1 more source

Total mercury, organic mercury and mercury fractionation in soil profiles from the Almadén mercury mine area

Environmental Science: Processes & Impacts, 2014
Soil profiles located in the mining district of Almadén were investigated for total Hg, organic Hg fraction and Hg distribution by selective sequential extraction. A four-step sequential extraction method (labile Hg species, humic and fulvic complexes, elemental Hg and bound to crystalline oxides and Hg sulfide and refractory species) was performed ...
Rodolfo, Fernández-Martínez, Isabel, Rucandio   +1 more
openaire   +2 more sources

The estimation of total mercury in water

Water Research, 1979
Abstract Methods have been considered for the estimation of total mercury in samples of drinking water, surface water and sewage effluent. Those using chemical oxidation procedures for pre-treatment display limitations. Pretreatment by photolysis of water samples results in improved reliability and efficiency.
F JACKSON, D DELLAR
openaire   +1 more source

Factors influencing the total mercury and methyl mercury in the hair of the fishermen of Kuwait

Environmental Pollution, 2000
Total and methyl mercury (MeHg) levels in the hair of fishermen are described anticipating that they represent the critical group for dietary exposure. One-hundred human hair samples were collected from fishermen (Egyptians: age range 25-60), living in Doha Fishing Village, Kuwait.
N B, Al-Majed, M R, Preston
openaire   +2 more sources

The analysis of vegetation for total mercury

Water Air & Soil Pollution, 1991
Over four hundred vegetation samples were collected for total Hg determination as part of a biogeochemical survey in the Precambrian Shield region near Huntsville, Ontario. An objective of the survey was to obtain accurate data describing the spatial and temporal variation of Hg concentrations in vegetation.
Pat E. Rasmussen, Greg Mierle, Jerome O. Nriagu   +2 more
openaire   +1 more source