Importance

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Abstract

The present disclosure provides for a liner comprising a septum and a layer, the layer comprising a thermoplastic polymer, wherein the septum comprises an elastomer and the septum is coupled to the layer comprising the thermoplastic polymer. The present disclosure also provides for a cap assembly comprising the liner as disclosed herein and a cap, wherein the cap is coupled to the liner. Further, provided herein is a cap and vial assembly comprising the cap assembly as disclosed herein and a vial, wherein the cap assembly is coupled to the vial. Also provided herein is a method of testing water quality in a sample using an analytical instrument, wherein the sample is contained within a container comprising the liner as disclosed herein, the cap assembly as disclosed herein, or the cap and vial assembly as disclosed herein, the method comprising penetrating the liner with a syringe to remove a portion of the sample and testing the portion of the sample using the analytical instrument.

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First Claim