Sorbent Tube, Silica Gel, High-purity (ultra-low background), treated w/2,4-dinitrophenylhydrazine, 7 x 110-mm size, 2 sections, 300/150 mg sorbent, 20/40 mesh, 20Pk

Sorbent Tube, High-purity Silica Gel (ultra-low background), treated with (2,4-dinitrophenylhydrazine), 7 x 110-mm size, 2 sections, 300/150 mg sorbent, 20/40 mesh. Note: Wider tube diameter permits sampling flow rates up to 1 L/min Tube Ends: Glass Sealed Separators: Glass Wool/Glass Wool/Glass Wool