Results 51 to 60 of about 5,365 (146)

Voltammetric determination of phosphate and other species [PDF]

open access: yes, 1983
During a preliminary study of the use of oxidation of molybdenum blue at a glassy carbon electrode to determine phosphate. Molybdophosphate itself was shown to be reduced at a positive potential.
Nuri K. Bsebsu (7166819)
core  

Using a microfluidic paper-based analytical device and solid-phase extraction to determine phosphate concentration [PDF]

open access: yes
Phosphate is an essential nutrient, but in high concentrations it contributes to water pollution. Traditional methods for phosphate measurement, such as absorption spectrophotometry and ion chromatography, require expensive equipment and skilled ...
Danchana, Kaewta   +2 more
core   +1 more source

Reductive Cyclopropanation through Bismuth Photocatalysis

open access: yesJournal of the American Chemical Society
We present here a catalytic method based on a low-valent Bi complex capable of cyclopropanation of double bonds under blue LED irradiation. The catalysis features various unusual Bi-based organometallic steps, namely, (1) two-electron inner sphere ...
Shengyang Ni   +2 more
semanticscholar   +1 more source

Activation and C−C Coupling of Aryl Iodides via Bismuth Photocatalysis

open access: yesAngewandte Chemie
Within the emerging field of bismuth redox catalysis, the catalytic formation of C−C bonds using aryl halides would be highly desirable; yet such a process remains a synthetic challenge.
Mauro Mato   +3 more
semanticscholar   +1 more source

Activation and Catalytic Degradation of SF6 and PhSF5 at a Bismuth Center

open access: yesJournal of the American Chemical Society
In this work, we report the catalytic degradation of SF6 and PhSF5 using N,C,N pincer bismuthinidene complexes (1 and 5). Exposure of SF6 and PhSF5 to 1 results in the reduction of the S(VI) substrates and concomitant formation of Bi(III) and Bi(II ...
Vanessa A. Béland   +3 more
semanticscholar   +1 more source

Influence of Bismuth Complex Catalysts on the Cure Reaction of Hydroxyl-terminated Polyether-based Polymer Bonded Explosives

open access: yes, 2018
The kinetics of catalyzed urethane-forming reactions of hydroxylterminated polyether (HTPE) with toluene di-isocyanate (TDI) in the presence of bismuth complex catalysts was investigated by non-isothermal differential scanning calorimetry (DSC).
Yapeng Ou, Q. Jiao, Shi Yan, Yan-li Zhu
semanticscholar   +1 more source

Electrochemical Sensor for Metal Ions and Phosphate Ion Detection for Biomedical and Agriculture Application [PDF]

open access: yes, 2017
The goal of this work was to develop electrochemical sensors for heavy metal ions (e.g., Cd2+, Hg2+, Pb2+) and phosphate detections in fertilizers with high sensitivity, high detection range, repeatability and portability. The heavy metal electrochemical
Kabir, Md Faisal
core   +1 more source

Transient analysis of propene partial oxidation over iron antimony oxide [PDF]

open access: yes, 2000
Bibliography: leaves 148-153.The main purpose of this work was to investigate propene partial oxidation at steady state and transient mode over an iron antimonate catalyst of Sb/Fe=1.5: I and to formulate a transient kinetic simulation for the ...
Tshwaku, Mgcini
core  

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