The metallic probes are preferably not connected to a power source but rather react within {HEAD ~ the salt brine} to produce {TAIL ~ metallic ions} 
to produce
The metallic probes are preferably not connected to a power source but rather react within { HEAD ~ the salt brine } to produce { TAIL ~ metallic ions }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL