AFP - Analytical Flow Products

http://www.afproducts.ca/

Chromatographic Diaphragm Valves, Sample Stream Selection Valves, Rotary Valves, Fittings, Accessories

LDetek

http://www.ldetek.com/plasmadetek.php

Unique Duty Cycled Controlled Plasma Emission Detector System (PED) for Gas Chromatography