Cadmium determination
Quality of measurements in analytical chemistry study of case: cadmium determination by flame atomic absorption spectrophotometry.
... QUALITY OF MEASUREMENTS IN ANALYTICAL CHEMISTRY STUDY OF CASE: Cadmium Determination by Flame Atomic Absorption Spectrophotometry. Calculation of uncertainty of results represents the new paradigm in the ...
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Application of polyurethane foam loaded with BTAC in an on-line preconcentration system: cadmium determination by FAAS
... The preconcentration procedure described in this paper allows cadmium determination in bio- logical materials, whose analysis would be re- stricted due to poor sensitivity of Flame Atomic Absorption ...
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Application of Box–Behnken design in the optimisation of an on-line pre-concentration system using knotted reactor for cadmium determination by flame atomic absorption spectrometry
... for cadmium determination in drinking water using flame atomic absorption spectrometry ...(FAAS). Cadmium(II) ions are retained as 1-(2-pyridylazo)-2-naphthol (PAN) complex at the walls of a knotted ...
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Cadmium determination in Lentinus edodes mushroom species
... mainly cadmium, mercury, and ...of cadmium was determined in Lentinus edodes mushrooms from different cities in São Paulo state and some samples imported from Japan and ...
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An on-line pre-concentration system for determination of cadmium in drinking water using FAAS
... Cadmium determination in drinking water samples could be carried out directly by electrothermal atomic absorption spectrometry (ETAAS) or by inductively coupled plasma mass spectrometry (ICP-MS), which have ...
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Determination of cadmium in river water samples by flame AAS after on-line preconcentration in mini-column packed with 2-aminothiazole-modified silica gel
... determining cadmium at ultra low trace levels in an aqueous ...online cadmium determination in natural water samples by FAAS, although it requires predigestion of samples, ...
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Review of procedures involving separation and preconcentration for the determination of cadmium using spectrometric techniques
... concentrating cadmium ions from numerous ...disponibility, cadmium concentration, desired preconcentration factors, among ...for cadmium determination in samples such as natural waters, foods ...
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Mechanisms of cadmium toxicity in fish: osmoregulatory responses
... with cadmium exposure in freshwater Nile tilapia Oreochromis ...that cadmium exposure ...glucose. Cadmium exposure is marked by a transient increase in plasma cortisol levels suggesting an additive ...
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Evaluation of the leached cadmium and nickel from the degradation of nickel-cadmium batteries in a column of soil.
... LEACHED CADMIUM AND NICKEL FROM THE DEGRADATION OF NICKEL–CADMIUM BATTERIES IN A COLUMN OF ...and cadmium were placed in two different columns of soil for a period of two ...experiment, ...
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Phytochelatin signal tranduction and cadmium chelation in plants
... industry and agrotechnics their high bioaccumulation rates and high toxicity levels. Over the last several decades there has been an increasing awareness of how heavy metals act as environmental pollutants (Baker and ...
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Hydrostatic pressure on cadmium toxicity in Palaemon varians
... bioaccumulate cadmium in their tissues and contrary to the majority of trace metals, evidences of possible cadmium biomagnification were reported in a microbiological food web and in freshwater food webs ...
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Lead and cadmium content of Brazilian beers
... and cadmium content by atomic absorption spectrometry with graphite furnace atomization and Zeeman ...and cadmium in all samples were bellow the maximum accepted by present Brazilian regulations and ranged ...
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Anti-osteogenic activity of cadmium in zebrafish
... of cadmium chloride exhibited some bending of the trunk that could be related to a curved notochord that may later translate into a deformed vertebral column (Figure ...study cadmium skeletogenic effect, ...
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Determination of sugars.pdf
... Determination of sugars in chestnut (Castanea sativa Mill. ) cultivars fro m Portugal Northeast region by HPLC-RI.. Joao C.M.[r] ...
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Activity Determination of Na
... For enzyme extraction, the gills were removed, dried with absorbent paper, and weighed in analytical balance. The membrane’s cells of the gills of P. vivipara were isolated for dosage of the Na + K + - ATPase and Mg ++ - ...
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MOBILITY OF CADMIUM IN VARIOUS SOIL TYPES / SUBTYPES
... to cadmium was variable but relatively similar ...where cadmium migration to the lower column layers were determined. The cadmium contents in extract of 2M HNO 3 were in range of 0,00 - 4,98 ...The ...
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Cathodic and anodic simultaneous electrolytic deposition to minimize copper and lead interferences on spectrophotometric determination of cadmium by the Malachite Green-iodide reaction.
... per determination. Results of the determination of Cd in certified reference materials, vegetables and tap water were in agreement with certified values and with those obtained by GFAAS at 95% confidence ...
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Cadmium availability and accumulation by lettuce and rice
... Rice grain yields decreased with higher soil available Cd extracted by Mehlich-1, Mehlich-3 and DTPA solutions. The negative correlations obtained between soil Cd concentrations (in three chemical extracts) and rice ...
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Antioxidant system of ginseng under stress by cadmium
... (0, 45 and 90 μmol L –1 ), for 20 d. Cd concentrations and yields of root and shoot dry matter were determined at the end of the experiment. Malondialdehyde (MDA) production and the activities of antioxidant enzymes were ...
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Cadmium and tin magnetic nanocatalysts useful for biodiesel production
... Magnetic mixed iron/cadmium (ICdO) and iron/tin (ISnO) oxide nanoparticles were used as catalysts in relevant reactions for biodiesel production technologies. These compounds were active for hydrolysis and ...
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