Search Results - "MARGARITA S. STOYTCHEVA"

Biosorption of Congo Red and Methylene Blue by pretreated waste Streptomyces fradiae biomass - Equilibrium, kinetic and thermodynamic studies by Velkova, Zdravka Yancheva, Kirova, Gergana Kirilova, Stoytcheva, Margarita S, Gochev, Velizar

“…Pretreated waste Streptomyces fradiae biomass was utilized as an eco-friendly sorbent for Congo Red (CR) and Methylene Blue (MB) removal from aqueous…”
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Hexavalent chromium removal by waste mycelium of Aspergillus awamori by VELIZAR K. GOCHEV, ZDRAVKA I. VELKOVA, MARGARITA S. STOYTCHEVA

“…In this study, the Cr(VI) removal potential of waste mycelium from the industrial xylanase-producing strain Aspergillus awamori was evaluated. It was…”
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Simultaneous determination of species by Differential Alternative Pulses Voltammetry by Zlatev, Roumen K., Stoytcheva, Margarita S., Salas, Benjamin Valdez, Magnin, Jean-Pierre, Ozil, Patrick

“…A new voltammetric technique providing high resolution – Differential Alternative Pulses Voltammetry (DAPV) based on the nonlinearity of I/ E characteristic of…”
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Electrochemical sensor based on Arthrobacter globiformis for cholinesterase activity determination by Stoytcheva, Margarita, Zlatev, Roumen, Valdez, Benjamin, Magnin, Jean-Pierre, Velkova, Zdravka

“…The sensors applied recently for determination of cholinesterase activity are mostly enzymatic amperometric sensors, in spite of their disadvantages: short…”
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Bacterial sensors based on Acidithiobacillus ferrooxidans. Part I. Fe2+ and S2O32- determination by ZLATEV, Roumen, MAGNIN, Jean-Pierre, OZIL, Patrick, STOYTCHEVA, Margarita

“…An amperometric bacterial sensor with current response to Fe(2+) and S(2)O(3)(2-) ions has been designed by immobilizing an acidophilic biomass of…”
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Bacterial sensors based on Acidithiobacillus ferrooxidans. Part II. Cr(VI) determination by ZLATEV, Roumen, MAGNIN, Jean-Pierre, OZIL, Patrick, STOYTCHEVA, Margarita

“…The aerobic acidophilic bacterium Acidithiobacillus ferrooxidans oxidizes Fe(2+) and S(2)O(3)(2-) ions by consuming oxygen. An amperometric biosensor was…”
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Acidithiobacillus ferrooxidans fixation on mercuric surfaces ant its application in stripping voltammetry by Zlatev, Roumen K., Magnin, Jean-Pierre, Ozil, Patrick, Stoytcheva, Margarita S.

“…The adsorption (fixation) of bacteria Acidithiobacillus ferrooxidans on Hg and Cu metallic surfaces was qualitatively studied owing to two independent methods:…”
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