Ruthenium-Catalyzed Reductive Amidation without an External Hydrogen SourceA catalytic reaction between aldehydes and primary
amides that leads to N-alkylated
amides Voltammetric determination of β-carotene in raw vegetables and berries in Triton X100 mediaM Triton X100 media. The peak current showed a
linear dependence with the β-carotene concentration over
Determination of some catecholamines by coulometric titration and cyclic voltammetry corresponding quinones. Determination limits and
linearity ranges of oxidation current were found as functions
Voltammetric determination of sterically hindered phenols in surfactant-based self-organized media dodecyl sulfate supporting electrolyte are found. The calibration graphs are
linear in the ranges 2
О структуре геовремени are distinguished:
linear,
cyclic and scalar time.
Linear time (arrow of time) represents contraposition of order