the United Provinces? The rice in their diet may give them an excess of carbon but the dal does not appear to provide anything like a sufficiency of protein (containing nitrogen). For days together they will dispense with it altogether and live on rice made acceptable with chilli paste. Does the dal provide them with the subtle nitrogen binding factor which enables the natural order of plants p...

A disposable amperometric biosensor for commercial use to detect hydrogen peroxide has been developed. The sensor is based on screen-printed carbon paste electrodes modified by electropolymerization of pyrrole with horseradish peroxidase (HRP) entrapped. The facture techniques of fabricating the enzyme electrodes are suitable for mass production and quality control. The biosensor shows a linear...

The purpose of this project is to examine cyclic voltammetry (CV) analytical technique for anti_thalassemia drug deferasirox by modified multi-walled carbon nanotubes (MWCNTs) on glassy electrod (GCE) was described. electrochemical performance studied technique. ability the electrode determination under Optimize condition in pH 13.8~14, scan rate 100mv/s, temperature 30 0C and interference that...

in the present study, a new chemically modified carbon paste electrode (cpe) is constructed for rapid, accurate, simple, highly sensitive, and selective determination of mo (vi) using differential pulse voltammetry. the electrode was prepared using magnetic nickel zinc ferrite nanocomposite (ni0.5zn0.5fe2o4), as the modifier in cpe (ni0.5zn0.5fe2o4/cpe). mo (vi) was determined after preconcentr...

This contribution is based on our presentation at the 1 International Symposium on Sensor Science, Paris, 16-20 June 2003. It presents recent results regarding the electrochemical determination of submicromolar and nanomolar concentrations of various carcinogenic substances (nitrated polycyclic aromatic hydrocarbons, heterocyclic compounds, azo compounds, aromatic amino compounds, etc.) using b...

A multiwall carbon nanotubes-modified carbon paste electrode (MWCNTs/MCPE) wasfabricated and used to study the electrooxidation of penicillamine (PA) by electrochemicalmethods in the presence of methyldopa (MDOP) as a homogeneous mediator. Theelectrochemical oxidation of PA on the new sensor has been carefully studied. The kineticparameters such as electron transfer coefficient, α, and catalyti...

The present research is focused on the investigation of influence ultrafine additives structure formation hardened cement paste and establishment mechanisms morphological transformations, which determine properties hydrated products. In course research, modification ordinary Portland was performed by suspension multi-walled carbon nanotubes (MWCNTs), black (CB) paste, silica fume (SF). Scanning...