Results 81 to 90 of about 2,467 (304)

Quantitative determination of glycyrrhizinic acid by square-wave [PDF]

open access: yesMakedonsko Farmacevtski Bilten, 2003
Novel adsorptive stripping square-wave voltammetric method as well as a new high-pressure liquid chromatographic method for direct determination of glycyrrhizinic acid in dosage pharmaceutical preparation, used against virus infections, have been ...
Aneta Dimitrovska   +2 more
doaj  

Development of square-wave adsorptive stripping voltammetric method for determination of acebutolol in pharmaceutical formulations and biological fluids

open access: yesChemistry Central Journal, 2012
A validated simple, rapid, sensitive and specific square-wave voltammetric technique is described for the determination of acebutolol (AC) following its accumulation onto a hanging mercury drop electrode in a Britton-Robinson universal buffer of pH 7.5 ...
Al-Ghamdi Ali F   +3 more
doaj   +1 more source

Theory Guided Fine‐Tune of Strain Effects in Pt Ternary Alloy via Rare Earth Templating: Achieving High Performance PEMFCs Catalysts

open access: yesAdvanced Materials, EarlyView.
Theory‐guided strain engineering and rare‐earth templating are combined to create Pt5(Ce)Co@Pt multilayer nanoparticles with a Pt5Co‐like sublayer that fine‐tunes *OH binding near the ORR volcano optimum. The resulting catalyst delivers exceptional mass activity and remarkable long‐term PEMFC durability, revealing a strategy for designing highly active
Qi Zhang   +15 more
wiley   +1 more source

Adsorptive stripping voltammetry of vitamin B12.

open access: yesBUNSEKI KAGAKU, 1994
Vitamin B12 yields a polarographic catalytic wave at ca.-1.6 V vs. SCE. Vitamin B12 in river-water samples was determined by adsorptive stripping voltammetry in order to use this catalytic wave. The supporting electrolyte used was 0.01 M Na2HPO4+0.01 M NaH2PO4. A preconcentration potential of -1.2 V was applied for 5 min.
openaire   +1 more source

Targeted Modulation of d‐Band Center in MoS2 Interlayer With n‐Type Co/Fe Dopants Accelerating Sulfur Reaction Kinetics in Lithium‐Sulfur Batteries

open access: yesAdvanced Materials, EarlyView.
A targeted modulation of the MoS2 electronic structure is achieved via substitutional n‐type Co/Fe co‐doping. This strategy triggers S‐mediated d‐p hybridization, optimizing the binding affinity with polysulfides to establish a volcano‐shaped relationship between the d‐band center and catalytic activity.
Junhyuk Ji   +6 more
wiley   +1 more source

Development of a flux DMT with integrated adsorptive stripping voltammetry for free metal ions detection in solution

open access: yes, 2018
Development of a flux DMT with integrated adsorptive stripping voltammetry for free metal ions detection in solution.
Pinheiro, Jose Paulo   +2 more
core   +1 more source

Determination of Mg (II) in Biodiesel by Adsorptive Stripping Voltammetry at a Mercury Film Electrode in the Presence of Sodium Thiopentone

open access: yesInternational Journal of Electrochemical Science, 2013
A mercury film electrode was used to determine Mg (II) in biodiesel by adsorptive stripping voltammetry in presence of sodium thiopentone. A linear response was obtained for Mg (II) in the concentration range of 6.0 × 10-7 to 7.0 × 10-6 mol L-1 for ...
Tina R.C. Zezza   +2 more
doaj   +1 more source

Rapid and sensitive determination of cobalt by adsorptive cathodic stripping voltammetry using tin-bismuth alloy electrode

open access: yes, 2016
Tin-bismuth alloy electrode (SnBiE) was used for trace cobalt determination for the first time. Compared to the bismuth bulk electrode, the SnBiE possesses the advantages of higher hydrogen overpotential, easier manufacture, and lower cost.
Zhang, L   +3 more
core   +1 more source

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

open access: yesAdvanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao   +8 more
wiley   +1 more source

Adsorptive stripping voltammetric determination of reactive dyes [PDF]

open access: yes, 2000
The present study was mainly devoted to evaluate the applicability of differential pulse adsorptive stripping voltammetry (DPAdSV) for the determination of ultra-trace concentration levels of a range of reactive dyes. The studied reactive dyes were found
Ahmad H. Al-Gamdy (7167215)
core  

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