Abstract
A terbium complex with long luminescence lifetime for the selective time-gated detection of potassium is presented. The complex demonstrates high sensitivity with a 25-fold increase in time-gated luminescence intensity between 0 and 15 mM potassium. The high selectivity of the complex for potassium over other physiological cations, and especially sodium (93 fold), is likely due to a favorable cation-π ( interaction between a phenol moiety and the potassium ion.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 434-435 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 131 |
| Issue number | 2 |
| DOIs | |
| State | Published - Jan 21 2009 |