In one configuration, the sample holder may be rotatable with respect to {HEAD ~ the closure} to maintain {TAIL ~ the sample holder} in a substantially stationary position within the first chamber during engagement of the closure with the housing 
In one configuration , the sample holder may be rotatable with respect to { HEAD ~ the closure } to maintain { TAIL ~ the sample holder } in a substantially stationary position within the first chamber during engagement of the closure with the housing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH