Results 161 to 170 of about 186,729 (218)

Arsenic speciation in contaminated soils [PDF]

open access: yesTalanta, 2002
A method for arsenic speciation in soils is developed, based on extraction with a mixture of 1 mol l(-1) of phosphoric acid and 0.1 mol l(-1) of ascorbic acid, and further measurement with the coupling liquid chromatography (LC)-ultraviolet (UV) irradiation-hydride generation (HG)-inductively coupled plasma mass spectrometry (ICP/MS).
Garcia-Manyes, S   +4 more
openaire   +4 more sources

New Procedures for Arsenic Speciation: A Review

Talanta, 2014
Considerable analytical methods have been developed for arsenic speciation in the last 5 years, the details of these new arsenic speciation procedures are thus summarized in present mini review. The performances of various sample pretreatment techniques including solid phase extraction, liquid-liquid extraction, hydride generation, liquid ...
Xu-Wei Chen
exaly   +3 more sources

Environmental speciation of arsenic

open access: yes, 2013
This chapter reviews the current state of knowledge on the speciation of arsenic in aquatic and terrestrial environments. Due to the enormous differences in the toxicity of different arsenic species, knowledge of arsenic speciation is of utmost importance in terms of environmental management and remediation.
Sharma V.K.   +3 more
openaire   +2 more sources

Speciation of Arsenic in a Large Endoheric Lake

open access: yesBulletin of Environmental Contamination and Toxicology, 2005
Speciation of arsenic in a large endoheric ...
B A, Madigan, N, Turoczy, F, Stagnitti
openaire   +3 more sources

Arsenic speciation analysis

Talanta, 2002
Nearly two dozen arsenic species are present in the environmental and biological systems. Differences in their toxicity, biochemical and environmental behaviors require the determination of these individual arsenic species. Considerable analytical progresses have been made toward arsenic speciation analysis over the last decade.
Zhilong, Gong   +4 more
openaire   +2 more sources

Arsenic and arsenic speciation in mushrooms from China: A review

Chemosphere, 2020
Arsenic (As) is a natural environmental contaminant to which humans are usually exposed in water, air, soil, and food. China is a typical high-As region, and also a great contributor of the world production of cultivated edible mushrooms and a region abundant in wild growing edible mushrooms.
Ji Zhang   +4 more
openaire   +2 more sources

Arsenic speciation in hair extracts

Analytical and Bioanalytical Chemistry, 2004
Ingested arsenic is known to be not only excreted by urine, but to be stored in sulphydryl-rich tissue like hair, nail or skin. We developed an extraction method for arsenic species from these tissues and studied the stability of different arsenic species during the extraction process. Inorganic and pentavalent methylated arsenic was found to be stable
Andrea, Raab, J, Feldmann
openaire   +2 more sources

Speciation of arsenic in body fluids

Talanta, 2002
Inorganic arsenic is metabolized by consecutive reduction and methylation reactions to dimethylated arsenic (DMA), and then excreted into the urine mostly in the form of DMA. Therefore, arsenic metabolites in the body fluids and organs/tissues are present in the form of inorganic (arsenite and arsenate) and methylated arsenics (MMA and DMA).
Kazuo T, Suzuki   +2 more
openaire   +2 more sources

Speciation of arsenic in biological samples

Toxicology and Applied Pharmacology, 2004
Speciation of arsenicals in biological samples is an essential tool to gain insight into its distribution in tissues and its species-specific toxicity to target organs. Biological samples (urine, hair, fingernail) examined in the present study were collected from 41 people of West Bengal, India, who were drinking arsenic (As)-contaminated water ...
Badal Kumar, Mandal   +3 more
openaire   +2 more sources

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