J. Braz. Chem. Soc. vol.16 número3B

The residue was purified by silica gel chromatography using a 3:1 hexane:ethyl acetate mixture, to give a diastereomeric mixture of 3-(1,4-Dioxa-. spiro[4.5]dec-7-yl)-cyclohexanone

Medium surface area β -SiC nanotubes prepared according to the Shape Memory Synthesis method was very successfully used as support material for the NiS 2 - based active phase for

The EtOH crude extract from the leaves of Nectandra grandiflora collected in the Atlantic Forest, Brazil, showed antioxidant activity towards β -carotene in a TLC assay..

Immobilized Stearic Acid as a New Sorbent for On-Line Preconcentration and Determination of Lead by Flow Injection Flame Atomic Absorption Spectrometry.. Shayessteh Dadfarnia,*

Determination of Trace Amounts of Copper in River and Sea Water Samples by Flame Atomic Absorption Spectrometry (FAAS) after Cloud-point Preconcentration..

A simple and robust method for the determination of arsenic in sediments by hydride generation atomic absorption spectrometry (HG-AAS) using slurry sampling is proposed.. Aqua regia

Determination of Copper, Iron, Lead and Zinc in Gasoline by Sequential Multi- Element Flame Atomic Absorption Spectrometry after Solid Phase Extraction..

A method for determination of arsenic in mineral fertilizers by continuous flow hydride generation atomic absorption spectrometry (CF-HG-AAS) was developed by using diluted acid