The Application of Nafion Metal Catalyst Free Carbon Nanotube Modified Gold Electrode: Voltammetric Zinc Detection in Serum.
The Application of Nafion Metal Catalyst Free Carbon Nanotube Modified Gold Electrode: Voltammetric Zinc Detection in Serum.
复制标题
Nafion金属无催化剂碳纳米管修饰金电极的应用：伏安法检测血清中的锌。
DOI：
10.1002/elan.201300158
复制
发表时间：
2013
期刊：
影响因子：
3
通讯作者：
Heineman,WilliamR
中科院分区：
文献类型：
--
作者：
Yue,Wei;Bange,Adam;Riehl,BillL;Johnson,JayM;Papautsky,Ian;Heineman,WilliamR
首次将无金属催化剂碳纳米管（MCFCNT）晶须作为电极修饰材料置于金电极表面，用于锌的伏安测量。将Nafion和MCFCNT晶须的复合膜施加到金电极表面以形成机械稳定的传感器。然后将该传感器用于乙酸盐缓冲溶液和提取的牛血清溶液中的锌检测。对于120 s沉积时间，达到53 nM的检测限。 以双硫腙的氯仿溶液为锌螯合配体，采用二次萃取法提取牛血清中的锌。修饰电极被认为是可靠的和敏感的锌测量在两个矩阵。
Metal catalyst free carbon nanotube (MCFCNT) whiskers were first used as an electrode modification material on a gold electrode surface for zinc voltammetric measurements. A composite film of Nafion and MCFCNT whiskers was applied to a gold electrode surface to form a mechanically stable sensor. The sensor was then used for zinc detection in both acetate buffer solution and extracted bovine serum solution. A limit of detection of 53 nM was achieved for a 120 s deposition time. The zinc in bovine serum was extracted via a double extraction procedure using dithizone in chloroform as a zinc chelating ligand. The modified electrode was found to be both reliable and sensitive for zinc measurements in both matrices.