摘要
报道了[Fe（Sal2en）］2+的咪唑加合物对NO电氧化的影响．实验表明，它将[Fe（Sal2en）]2+对NO的电催化氧化活性提高T2倍．过量咪唑会降低[Fe（Sal2en）]2+对NO的催化活性．证实了NO的电催化氧化形成NO[Fe（Sal2en）]2+中间体的推断．用制得的修饰电极测定NO，当c（NO）在3×10-6～2×10－9mol／L时，有良好线性关系，相对标准偏差小于0．5％，线性相关系数为0.9994，检测限为2×10－9mol／L．满足生理分析的要求．
The effects of the adduct of imidazole and [Fe (Sal2en)]2+ oxidizing nitric oxide electrocatalytically were studled in this paper. The adduct of the 1: 1 mole ratio of Im/[Fe (Sal2en) ]2+ can improve twice the sensitivity at which [Fe (Sal2en)]2+ oxidizes nitric oxide. It is certain that the media NO·[Fe (Sal2en)]2+ generates during the electro-oxidation of nitric oxide. The electrode above has a good linear response in the range of 3×10-6~2×10-9 mol/L of NO. The detection limit is 2×10-9 mol/L, RSD%<0. 5%, δ>0. 999 4.It satisfys with the need of the phsiological analysis.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第9期1380-1383,共4页
Chemical Journal of Chinese Universities
基金
广东省自然科学基金!960006
关键词
一氧化氮
电催化氧化
测定
修饰电极
生物体
Nitric oxide, Imidazole, [Fe(Sal_2en)]^(2+), Electrocatalytic-oxidation
