{HEAD ~ An electrochemiluminescent electrode} for use in apparatus for monitoring {TAIL ~ the concentration} of organic materials in water, comprising: 
{ HEAD ~ An electrochemiluminescent electrode } for use in apparatus for monitoring { TAIL ~ the concentration } of organic materials in water , comprising :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH