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Solid Phase Extraction of Cadmium in Edible Oils Using Zinc Piperazinedithiocarbamate and Its Determination by Flame Atomic Absorption Spectrometry
Solid Phase Extraction Edible Oils Using Zinc Piperazinedithiocarbamate Its Determination
2008/8/30
A method was developed for preconcentration of cadmium with zinc-piperazinedithiocarbamate (ZnPDC) in edible oils and its determination by flame atomic absorption spectrometer (FAAS). The preconcentra...
Zinc Perchlorate Hexahydrate Catalyzed Mono- and Bis-Transesterification of Malonic Esters
Transesterification zinc perchlorate malonic esters mono-substituted malonic esters unsymmetrical malonic esters
2008/4/30
Commercially available zinc perchlorate hexahydrate [Zn(ClO4)2.6H2O] was found to be a highly effective catalyst for the transesterification of malonic esters with alcohols. The treatment of methyl-, ...