Lactate can be determined rapidly in blood by spectrophotometric and amperometric (enzyme
electrode) procedures based on its oxidation by ferricyanide, the reaction being catalyzed …

… The 2-mm diameter platinum disk working electrode was firstly treated by successively
polishing the surface with diamond paste, rinsing with distilled water and cycling in H 2 SO 4 0.5 …

… H 2 Q and H Q · are the reduced and the semi quinonic catechin forms of catechin, respectively.
When the catechin concentration is low, the rate of step 2 is such that I ads formed by the …

Flavin adenine dinucleotide is used as a mediator to reduce cytochrome c, glucose oxidase
and methemoglobin and to oxidize ferredoxin on the platinum electrode. Thin layer …

… Electrolysis had to be performed at a potential close to that for solvent reduction, for 13 h,
in order to reduce half of the molecules in the thin layer. Oxidation of the ferroperoxidase …

The Interface between platinum and horse heart cytochrome c and theInterface between
platinum and a lactlcodehydrogenase from baker's yeast are studied by thin-layer …

Some examples of the use of optically transparent thin layer electrodes to study electron
transfer between platinum or carbon and enzymes are given. With respect to the biomolecule, …

The lactate-specific, amperometric, enzyme electrode based on the redox couple
hexacyanoferrate (II)/hexacyanoferrate (III) has been modified by replacing this couple by the …

The electrode, based on a lactate dehydrogenase and a diaphorase, permits the assay of l-lactate
in the concentration range 0.2–8 mM with a response time of about 40 s. Both the …

… The amount of enzyme fixed was correlated with the initial rate (v) of the substrate disappearance
reaction and this initial rate was measured every 3 h. Between each measurement, the …