{HEAD ~ The pipette} is cleaned thoroughly between dispenses and aspirations by flushing with {TAIL ~ a PBS solution} 
{ HEAD ~ The pipette } is cleaned thoroughly between dispenses and aspirations by flushing with { TAIL ~ a PBS solution }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL