Abstract. Vitamin  1 (thiamine bromide) is a component of the ferments, which take part in the exchange of substances flowing in alive organisms and has a wide application in medical practices for medical treatment of different nerve illnesses. As alternative to polarograph detection of vitamin, we propose a voltamperometric chemosensor where nanostructured surface of nickel is used as indicator electrode. It claims that thiamine bromide has a significantly higher discharge intensity on the nanostructural nickel electrode than on the smooth one in 2-3 times and increases in the factor of tens as compared with mercury electrode. This significantly increases a sensitivity of sensor and make it application more safe.
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