权威例句
Analysis of ulmic acid by mass spectrometryMethod of cleaning humic and ulmic acidsProcess of precipitating ulmic compounds from the black liquors of soda pulp-millsOxidation and reduction of humic and ulmic acids on the carbon-paste electrodeThe anodic oxidation of coal. Part IV. Examination of the ulmic acidsComposition and properties of humic and ulmic acids of some soils in the Taskent RegionThe influence of fulvic and ulmic acids from peat, on the spontaneous contractile activity of smooth musclesThe anodic oxidation of coal. Part II. The effect of oxidizing vitrain and ulmic acids at various metal anodesIsolation of biologically active fractions from the water soluble components of fulvic and ulmic acids from peat.METHOD OF PRODUCING FULVIC, HUMIC, AND ULMIC ACID FOR USE AS AN ELECTROLYTE IN PRODUCING IONIZED BACTEREACIDES FROM PRECIOUS METALS ...