4mm x 70mm PCT "Preconcentrator" Tube (10 Pack)

Amberlite and XAD are registered trademarks of The Dow Chemical Company or an affiliated company of Dow. Supelpak, Carbosieve, Carboxen and Carbopack are trademarks of Sigma-Aldrich Co. LLC. Anasorb is a registered trademark of SKC, Inc. Chromosorb is a registered trademark of Imerys Minerals California, Inc. HayeSep is a registered trademark of Hayes Separation Inc. Tenax is a registered trademark of Buchem B.V.. Carbograph is a trademark of LARA S.r.l. Markes is a trademark of Markes International. PerkinElmer is a trademark of PerkinElmer, Inc. Shimadzu is a trademark of Shimadzu Corporation.