2016
DOI: 10.1016/j.talanta.2015.06.085
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Automated determinations of selenium in thermal power plant wastewater by sequential hydride generation and chemiluminescence detection

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Cited by 17 publications
(11 citation statements)
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“…The chemistry of vapor generation reactions indicate that at higher concentrations of acid reagent, the hydride generation processes should occur more rapidly. However elevated acid concentrations produces larger amounts of hydrogen gas which can dilute the hydride vapor thus reducing the concentration of the hydride [ 6 ].…”
Section: Discussionmentioning
confidence: 99%
“…The chemistry of vapor generation reactions indicate that at higher concentrations of acid reagent, the hydride generation processes should occur more rapidly. However elevated acid concentrations produces larger amounts of hydrogen gas which can dilute the hydride vapor thus reducing the concentration of the hydride [ 6 ].…”
Section: Discussionmentioning
confidence: 99%
“…Actual portable devices may have been developed for on-site monitoring of Se species, though with sporadic uses. An example is the portable device measuring the speciation of Se for a month in wastewaters of thermal power plants by hydride generation coupled to a chemiluminescence detector, showing relatively high detection limits (DL) of ∼8 μg L −1 (Ezoe et al, 2016). Other examples include electrochemical probes using gold nanoparticles showing DL of 0.12-0.27 μg L −1 for potential applications in seawater and agricultural food but no proven use in environmental monitoring (Segura et al, 2015;.…”
Section: )mentioning
confidence: 99%
“…al. 27 empregaram a CL, originada a partir da reação química entre o Se vaporizado (H 2 Se) com ozônio, para a quantificação do Se presente em amostras de resíduos industriais. Na Espectrometria de Absorção Atômica (AAS) ou na Espectrometria de Emissão Atômica (AES), nas quais a intensidade de radiação eletromagnética absorvida ou emitida é relacionada à concentração, a determinação de Se e de outras espécies químicas necessita de uma prévia atomização das amostras para geração de átomos e íons gasosos.…”
Section: Métodos Espectrométricosunclassified