The sensor 3, wherein {HEAD ~ the detection head} further comprises second laser means for heating {TAIL ~ the sample} to volatilize the sample 
The sensor 3 , wherein { HEAD ~ the detection head } further comprises second laser means for heating { TAIL ~ the sample } to volatilize the sample
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH