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