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Evaluation of Septa Quality for Automatic SPME–GC–MS Trace These septa often emit specific volatile organic compounds (VOCs) Twelve types of crimp caps with butyl rubber–PTFE or the silicone–PTFE septum and two … 2mL Autosampler Vials with Writing Area and Graduations, 9-425 Clear Red White Septa PTFE-lined screw cap for organic samples. … WIDE APPLICATION: These amber vials and caps are ideal for most standard HPLC and GC … 40mL Clear VOA Vial Assembled w/Open Top Bonde...

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