Tb3+ [5D4] excited state quenched by Ce4+

Tb³⁺ [⁵D₄] quenched by Ce⁴⁺
Solvent : H₂SO₄ (95%), 20ºC

k_q = 1 x 10⁶(L mol^–1 s^–1)

Mechanism: oxidative electron transfer
Experimental methods: conventional flash, luminescence, single shot signal
Lifetime in the absence of quencher, air free = 2400 micro sec.