Selective sensing of Cu(Ⅱ) at ng ml~(-1) level based on phosphorescence quenching of 1-bromo-2-methylnaphthalene sandwiched in sodium deoxycholate dimer

摘要

Using sodium deoxycholate as a protective medium, the selective recognition of Cu(Ⅱ) at ng ml~(-1) level is realized through dynamic phosphorescence quenching of 1-bromo-2-methylnaphthalene (BMN) without deoxygenation. The limit of detection is 4.32 ng ml~(-1), and the relative standard deviation is 1% at 10 μM, linear up to 1 x 10~(-5) M.