Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Molecular Science, Shanxi University, Taiyuan, 030006, China.
Analyst. 2010 Nov;135(11):2918-23. doi: 10.1039/c0an00620c. Epub 2010 Sep 28.
A novel strategy for the determination of oxalate anions was successfully established using a copper ion and pyrocatechol violet (PV) ensemble. The sensor ensemble can discriminate oxalate over other common anions including F(-), Cl(-), I(-), Br(-), HPO(4)(2-), PO(4)(3-), AcO(-), CO(3)(2-), SO(4)(2-), ClO(4)(-), P(2)O(7)(4-), S(2-) (deposited by Ag(+)), CN(-) (shielded by Fe(3+)) and can detect oxalate at low microgram levels in quasi-physiological aqueous solutions. The detection of the oxalate anion gives rise to a rapid observable visual color change from blue to yellow.
一种利用铜离子和焦儿茶酚紫（PV）配合物测定草酸根阴离子的新策略已成功建立。该传感器配合物可以区分草酸根阴离子与其他常见阴离子，包括 F(-)、Cl(-)、I(-)、Br(-)、HPO4(2-)、PO4(3-)、AcO(-)、CO3(2-)、SO4(2-)、ClO4(-)、P2O7(4-)、S2-(被 Ag(+)沉淀)、CN(-) (被 Fe(3+)屏蔽)，并能在近生理的水溶液中检测到低微克水平的草酸根阴离子。草酸根阴离子的检测会导致快速可见的颜色从蓝色变为黄色。
