Abstract: A closure apparatus is provided that includes a plurality of plug closures interconnected by straps. Each plug includes a blind bore therein into which a sampling needle may be inserted for penetration of the plug in order to extract a sample from the container to which the plug is attached. The plugs are arranged within an array that may correspond to an array of containers set within wells located in a block array. A membrane is also provided that interconnects the straps and the plugs. The plugs are fashioned from an elastomer such as a silicone elastomer. A layer of PTFE is provided on the bottom outer surface of the plugs and may also be included on the underside of the interconnecting straps and membrane, so as to provide an inert barrier in contact with the contents of the containers.

Abstract: Apparatus for use in analytical instruments such as autosamplers comprises a tapered vial and a sleeve. The sleeve includes an annular inner frustoconical portion which receives the closed end of the vial to locate it in an operative position of an autosampler. The portion may include a cylindrical extension for precisely defining the axial height of the vial relative to the sleeve, and hence the instrument.

Abstract: Apparatus for use in analytical instruments such as autosamplers comprises a tapered vial and a sleeve. The sleeve includes an annular inner frustoconical portion which receives the closed end of the vial to locate it in an operative position of an autosampler. The portion may include a cylindrical extension for precisely defining the axial height of the vial relative to the sleeve, and hence the instrument.