Fluorescence - quenching
1.Dynamic quenching via collision 2.Static quenching via complex formation 3. Quenching by internal processes M + hn1--> M*M* --> M + hn2 Fluorescence-emission ad 1 M* --> M + heat Collision quenching ad 2 M + Q --> MQ Complex formationM + hn1 --> MQ* --> MQ + heat ad 3 M* --> M + heat internal process (without radiation)