Hydride generation
Speciation of antimony (III) and antimony (V) using hydride generation for meglumine antimoniate pharmaceutical formulations quality control
... The pentavalent antimonies, mainly the meglumine antimoniate, are recommends as first-choice medicines for leishmaniasis therapy. In this work we described the development of formulations of meglumine antimoniate inject- ...
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Determination of Lead in Human Teeth by Hydride Generation Atomic Absorption Spectrometry
... The use of lanthanum (III) as matrix modifier has proven to constitute an effective approach for the determination of lead by hydride generation technique. The proposed method provides adequate sensitivity, ...
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Evaluation of Arsenic and Selenium in Brazilian Soluble Coffee by Inductively Coupled Plasma Atomic Emission Spectrometry with Hydride Generation
... tubes; hydride generation was carried out in a continuous mode by using a two-channels peristaltic pump (Gilson Instrument ...for hydride generation system are summarized in Table ...
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Multivariate optimization of a method for antimony determination by hydride generation atomic fluorescence spectrometry in hair samples of patients undergoing chemotherapy against Leishmaniasis
... of hydride generation (HG) with AFS allows the determination of elements such as As, Sb, Se, Te, Bi, Hg , among others, with very low detection limits, good precision, accuracy and confidence (Santos et ...
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Analytical Strategies for Determination and Environmental Impact Assessment of Inorganic Antimony Species in Natural Waters Using Hydride Generation Atomic Fluorescence Spectrometry (HG AFS)
... inorganic antimony species in natural waters using continuous flow system and HG AFS. The multivariate techniques used in this study provided a quick and efficient optimization of the investigated factors that influence ...
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Electrochemical hydride generation for selenium determination in a flow injection system with Air-GLP flame atomic absorption spectrometric detection.
... ELECTROCHEMICAL HYDRIDE GENERATION FOR SELENIUM DETERMINATION IN A FLOW INJECTION SYSTEM WITH AIR-GLP FLAME ATOMIC ABSORPTION SPECTROMET- RIC ...electrochemical hydride generation using ...
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Analysis of Mercury-Rich Plants and Mine Tailings Using the Hydride-Generation AAS Method
... The limit of detection (LOD) for mercury was calculated using the general definition proposed by Harris (1986). The LOD should correspond to the concentration of an element necessary to yield a net signal equal to two ...
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J. Braz. Chem. Soc. vol.18 número2
... concentration time (sample volume of 2 mL), sensitivity enhancement compared to flame AAS, were 417 and 450 folds for In and Tl, respectively, using hydride generation-atom trapping technique. The ...
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J. Braz. Chem. Soc. vol.16 número3B
... In this study, a flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS) system was employed for lead determination. The merging zones approach to flow injection system utilizes the ...
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J. Braz. Chem. Soc. vol.18 número6
... It may be concluded that the proposed HS-SME-ETAAS system can be successfully used for tin determinations in aqueous and slurry samples. In comparison to an ordinary ETAAS method with direct injection, the proposed ...
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J. Braz. Chem. Soc. vol.12 número1
... with hydride generation allows easy and sensitive determination of total arsenic, usually after complete reduction of the different forms to arsenite; several possibilities have been proposed for the ...
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Method development for arsenic analysis by modification in spectrophotometric technique
... Abstract. Arsenic is a non-metallic constituent, present naturally in groundwater due to some minerals and rocks. Arsenic is not geologically uncommon and occurs in natural water as arsenate and arsenite. Addi- tionally, ...
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FLOW INJECTION ANALYSIS SYSTEM COUPLED WITH ICP-EOS FOR DETERMINATION OF SOME METALLIC ELEMENTS IN DRINKING WATER
... injection-hydride generation with the inductively coupled plasma atomic emission spectrometry ...the hydride generation two types of solution were used: 10% (v/v) HCl as a carrier solution and ...
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J. Braz. Chem. Soc. vol.18 número4
... sedimentos é preciso, exato e adequado para a análise de rotina de amostras ambientais. A simple and robust method for the determination of arsenic in sediments by hydride generation atomic absorption ...
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J. Braz. Chem. Soc. vol.27 número7
... flow hydride generation atomic absorption spectrometry (CF-HG-AAS) was developed by using diluted acid and digester block with perfluoroalkoxy (PFA) tubes to sample ...
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Evaluating the Impact of New Renewable Energy on the Peak Load - An ARDL Approach for Portugal
... During this period some phenomena are observed which reveal statistical significance. They are a break that occurs every year around April/May in hydro generation. Considering that the beginning of 2012 was ...
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Carbon capture and storage in the power sector of Portugal and Spain
... technology during the time needed to base our energy supply on carbon free, renewable energy technologies. Though it is clear that no single measurement taken to reduce GHG is sufficient to tackle climate change and ...
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A enzima chiquimato quinase (EC 2.7.1.71) de Mycobacterium tuberculosis como alvo para o desenvolvimento de drogas
... NADPH ) as variable substrate indicates that hydride transfer is involved in a rate-. limiting step and that the transition state may be either substrate- (early) or product-like[r] ...
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An Investigation on the Persistence of Uranium Hydride during Storage of Simulant Nuclear Waste Packages.
... by hydride is significantly decreased as its existence is both transient and ...first generation Magnox storage pond and Magnox Swarf storage silo, all contain uranium in varying quantities in different ...
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THE IMPACTS OF THE CAPE VERDE SELF-EMPLOYED SOCIAL SECURITY SCHEME
... Thus, the (defined benefits social) security programs redistributes from the retired generation to the working generation, whenever the working force and the econom[r] ...
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