Electrochemiluminescence detection uses labels that emit light
when electrochemically stimulated. Background signals are
minimal because the stimulation mechanism (electricity) is
decoupled from the signal (light).
Labels are stable, non-radioactive and offer a choice of convenient
coupling chemistries. They emit light at ~620 nm, eliminating
problems with color quenching. Few compounds interfere with
electrochemiluminescent labels so you can use large, diverse
libraries with confidence.
Multiple excitation cycles of each label amplify the signal
to enhance light levels and improve sensitivity.