Results 81 to 90 of about 2,467 (304)
Quantitative determination of glycyrrhizinic acid by square-wave [PDF]
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
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 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.
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
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.
Pinheiro, Jose Paulo +2 more
core +1 more source
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
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
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]
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

