Department of Chemistry, Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials, Wuhan University, Wuhan, 430072, China.
Analyst. 2009 Oct;134(10):2071-5. doi: 10.1039/b903076j. Epub 2009 Aug 3.
An azo-based dye (I) was designed for the detection of cyanide by utilizing a new indirect method. In the presence of Cu(II), compound I could give rise to visible red-to-yellow color change. The resultant yellow solution could change to red immediately upon the addition of trace cyanide, with the detection limit of 0.15 ppm, but no changes were observed in the presence of other anions, including Cl(-), I(-), IO(3)(-), SO(4)(2-), NO(2)(-), Br(-), H(2)PO(4)(-), F(-), SCN(-), HSO(4)(-), ClO(4)(-) and CN(-), making compound I a selective and sensitive cyanide chemosensor.
一种偶氮染料(I)被设计用于通过一种新的间接方法检测氰化物。在 Cu(II)存在下,化合物 I 可以产生可见的红-黄颜色变化。所得的黄色溶液在痕量氰化物存在下立即变为红色,检测限为 0.15ppm,但在其他阴离子存在下没有观察到变化,包括 Cl(-)、I(-)、IO(3)(-)、SO(4)(2-)、NO(2)(-)、Br(-)、H(2)PO(4)(-)、F(-)、SCN(-)、HSO(4)(-)、ClO(4)(-) 和 CN(-),这使得化合物 I 成为一种选择性和灵敏的氰化物化学传感器。