Now showing items 1-10 of 4325
PRECONCENTRATION OF Cd2+ IN DIFFERENT SAMPLES BY CHEMICALLY MODIFIED SIO2-DHAQ NANOPARTICLES
(Sociedad Chilena de Química, 2011)
Calorific value and chemical properties in juvenile and mature wood of thermally-modified Eucalyptus grandis
During thermal modification, timber is exposed to temperatures approaching 200 °C for several hours and wood properties change. This study was aimed at evaluating the calorific value and chemical properties of juvenile and ...
DEVELOPMENT OF A CHEMICALLY MODIFIED ELECTRODE BASED ON CARBON PASTE AND FUNCTIONALIZED SILICA-GEL FOR PRECONCENTRATION AND VOLTAMMETRIC DETERMINATION OF MERCURY(II)
(Elsevier B.V., 1993-01-08)
A mercury-sensitive chemically modified electrode (CME) based on modified silica gel-containing carbon paste was developed. The functional group attached to the silica gel surface was 3-(2-thiobenzimidazolyl)propyl, which ...
Chemically modified electrodes applied to electroanalysis: A brief presentation
(Soc Brasileira QuimicaSao PauloBrasil, 1997)
Eletrodos quimicamente modificados aplicados à eletroanálise: uma breve abordagemChemically modified electrodes applyes to electroanalysis: a brief presentation
(Sociedade Brasileira de Química, 1997)
Nile blue adsorbed onto silica gel modified with niobium oxide for electrocatalytic oxidation of NADH
(Pergamon-elsevier Science LtdOxfordInglaterra, 2002)
Potentiometric study using chemically modified silica gel with pyridinium as membrane for ClO4 - ions
A potentiometric sensor for the perchlorate anion was developed by mixing chemically modified silicagel with pyridinium perchlorate, with an epoxy polymer and graphite. The electrode showed Nernstian response between 1.0 ...
GFAAS determination of mercury in muscle samples of fish from Amazon, Brazil
In the present study, a simple, rapid and sensitive method was developed for the determination of mercury concentrations in the muscle tissue of fish from the Brazilian Amazon using graphite furnace atomic absorption ...