Nickelhexacyanoferrate‐Modified Glassy Carbon Electrode as a Voltammetric and Electrochemical Impedance Spectroscopic Sensor for Thiocyanate Ion,ChemistrySelect

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Nickelhexacyanoferrate‐Modified Glassy Carbon Electrode as a Voltammetric and Electrochemical Impedance Spectroscopic Sensor for Thiocyanate Ion
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-01-09 , DOI: 10.1002/slct.201701691
Kangkana Deka ₁ , Diganta K. Das ₁

Affiliation

Thiocyanate (SCN⁻) is present in humane blood serum, saliva and urine which is high in case of smokers and is used to distinguish smokers from non‐smokers. Chronically elevated level of SCN⁻ in body fluids is toxic causing goitre, vertigo, unconsciousness etc. We have developed two modified glassy carbon (GC) electrodes by electrodeposition of (i) Nickelhexacyanoferrate (NiHCF) and (ii) NiHCF and cetyltrimethylammonium bromide (CTAB). These electrodes show new oxidation peaks at +1.100 V and +1.000 V respectively on interaction with SCN⁻ at μM level. Change in Bode plot on impedance spectroscopic measurement is also observed. Ions Na⁺, K⁺, NO₃⁻, SO₄²⁻, Cl⁻ and CH₃COO⁻ do not interfere.

中文翻译：

高铁酸镍修饰的玻碳电极作为硫氰酸根离子的伏安和电化学阻抗光谱传感器。

硫氰酸盐（SCN ^-）存在于人道血清，唾液和尿液是高吸烟者情况下，并且用于区分非吸烟者吸烟。长期过高SCN的水平^-在体液中是有毒的通过（i）Nickelhexacyanoferrate（铁氰化镍）和（ii）铁氰化镍和十六烷基三甲基溴的电沉积造成甲状腺肿，眩晕，意识障碍等，我们已经开发了两种改性玻璃碳（GC）电极（CTAB ）。这些电极在显示1.100 V和分别1.000 V于与SCN相互作用新氧化峰^-在μM水平。还观察到阻抗谱测量的波特图的变化。离子Na ⁺，K ⁺，NO ₃^-，SO ₄^2-，氯^-和CH ₃ COO ^-不干扰。

更新日期：2018-01-09

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