A biosensor measurements system containing as biological element tissue from edible mushroom Agaricus bisporus for the determination of dopamine, eponephrine and norepinephrine was investigated. The measurements based on oxygen consumption in relation to analyte oxidation. The calibration graphs are linear from 2?￠????100 ????M dopamine, 5?￠????80 ????M epinephrine and 6?￠????60 ????M norepinephrine. The results obtained by the proposed enzymatic method are in close agreement with those obtained using a HPLC.
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