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Especiação de compostos de arsênio em águas e fluidos biológicos empregando pré-tratamento fotoquímico e métodos voltamétricos
(Universidade Federal de Santa MariaBRQuímicaUFSMPrograma de Pós-Graduação em Química, 2007-12-21)
The presence of arsenic as a contaminant in water and biological fluids has been studied in recent years due to the high toxicity of this element. In this work a method for the selective determination of arsenic species ...
Arsenic speciation by X-ray spectroscopy using resonant Raman scattering
(Springer, 2013-12)
We have shown that X-ray resonant Raman scattering (RRS) spectroscopy can be used to analyze arsenic species. This work is pioneer in the area and an important work on the result interpretation is necessary in the future. ...
Sequential Injection Analysis (SIA) for Arsenic Speciation by Capillary Electrophoresis Hyphenated to Inductively Coupled Plasma Sector Field Mass Spectrometry (CE-ICP-SFMS)
(TAYLOR & FRANCIS INC, 2009)
Sequential injection analysis (SIA) is proposed for managing microvolumes of sample and arsenic species solutions for speciation analysis by capillary electrophoresis focusing on the reduction of hazardous waste residues. ...
Screening of Toxic Inorganic Arsenic Species in Garlic (Allium sativum L.)
(2011)
It has been evidenced that arsenic in garlic is present in the most toxic inorganic species As(III) and As(V). A non-chromatographic speciation method has been developed for the screening of inorganic toxic species of As ...
Preliminary physical chemical characterization of river waters and sediments affected by copper mining activity in central chile. Application of multivariate analysis
(SOC CHILENA QUIMICA, 2007-09)
The concentration of trace elements and other analytes of environmental interest was determined in waters and sediments of the Coya and Cachapoal rivers (VI Region, Central Chile), which corresponds to a location highly ...
Arsenic speciation in environmental samples of a mining impacted sector of central Chile
(SOCIEDAD CHILENA DE QUIMICA, 2004-12)
The presence of high concentrations of arsenic and copper was determined in most of the environmental matrixes under study (river water, river sediments, and soils), which suggests a real impact of the copper mining activity ...
Inter‐and intra-stock bioaccumulation of anionic arsenic species in an endangered catfish from South American estuaries: risk assessment through consumption
(Academic Press Inc Elsevier Science, 2020-04)
Monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), inorganic arsenic (iAs), and non-toxic species (i.e. arsenobetaine) were determined by HPLC-ICP-MS as mg kg−1 wet weight in muscle, liver and gill of catfish (Genidens ...
Arsenic in edible macroalgae: an integrated approach
(Taylor & Francis, 2020-01)
Arsenic is a metalloid naturally present in marine environments. Various toxic elements including arsenic (As) are bioaccumulated by macroalgae. This metalloid is subsequently incorporated as arsenate into the organism due ...
Speciation analysis of inorganic arsenic in river water by Amberlite IRA 910 resin immobilized in a polyacrylamide gel as a selective binding agent for As(v) in diffusive gradient thin film technique
(Royal Soc Chemistry, 2014-09-07)
In this study, a method is proposed for the selective retention of As(v) using diffusive gradient in thin film (DGT) samplers containing a strongly basic anion exchange resin (Amberlite IRA 910) supported on a polyacrylamide ...