A differential receptor for selective and quantitative multi-ion analysis for Co(2+) and Ni(2+)/Cu(2+)

作者：Kaur Navneet; Kumar Subodh^*

来源：Tetrahedron Letters, 2008, 49(34): 5067-5069.

DOI：10.1016/j.tetlet.2008.06.023

The differential mode of complexation of chromogenic sensor 3 with Co(2+) versus Ni(2+) (or Cu(2+)) at pH 4.0 in water leads to new absorption bands at lambda(max) 620 nm in the case of Co(2+), at lambda(max) 380 and 460 nm for Ni(2+) and at lambda(max) 460 nm for Cu(2+). These differential responses allow sensor 3 to be used for the selective and quantitative estimation of Co(2+) and Ni(2+) or Co(2+) and Cu(2+) from their mixtures.

• 出版日期2008-8-18