Sorbent Tube, Silica Gel, High-purity (ultra-low background), treated w/2,4-dinitrophenyhydrazine w/ built-in ozone scrubber, 8 x 115-mm size, 3 sections, 1500/300/150 mg sorbent, 20/40 mesh, 20Pk

Sorbent Tube, High Purity Silica Gel (ultra-low background), treated with (2,4-dinitrophenyhydrazine) with built-in ozone scrubber, 8 x 115-mm size, 3 sections, 1500/300/150 mg sorbent, 20/40 mesh. Tube Ends: Glass Sealed Separators: Glass Wool/Glass Wool/Glass Wool/Glass Wool