發(fā)布時(shí)間：2018-03-27 14:01

  本文選題：銀納米粒子　切入點(diǎn)：離子液體　出處：《理化檢驗(yàn)(化學(xué)分冊)》2017年06期

【摘要】：分別制備了離子液體[BMIM]BF4和銀納米粒子(AgNPs),并配制1.5 mol·L~(-1)AgNPs溶液,將上述離子液體與AgNPs溶液按4∶96的體積比混合后滴于經(jīng)拋光的玻碳電極(GCE)上,將此經(jīng)修飾的電極置于30℃真空干燥5 min,即得[BMIM]BF4-AgNPs/GCE修飾電極。對(duì)此修飾電極的電化學(xué)特性以及維生素C(Vc)在此電極上的電化學(xué)行為作了研究。結(jié)果表明:用上述修飾電極作為工作電極,SCE為參比電極,Pt電極為輔助電極,方波伏安法測定Vc時(shí),Vc濃度在5~100μmol·L~(-1)內(nèi)與相應(yīng)的峰電流值之間呈線性關(guān)系,測定的靈敏度為0.4μA·μmol~(-1)。應(yīng)用此方法測定了Vc片劑中Vc的含量,測定值與文獻(xiàn)值一致,測定值的相對(duì)標(biāo)準(zhǔn)偏差(n=5)小于2.0%。
[Abstract]:The ionic liquids [BMIM] BF4 and silver nanoparticles were prepared, and 1.5 mol L~(-1)AgNPs solution was prepared. The above ionic liquids were mixed with AgNPs solution at 4:96 volume ratio and then dripped on polished glassy carbon electrode (GCE). The [BMIM] BF4-AgNPs/GCE modified electrode was prepared by drying the modified electrode at 30 鈩，

本文編號(hào)：1671812