Tube Assembly, PEEK, Nozzle, Dispense, Micro Delivery, Dr. Oligo Plate and Dr. Oligo 48 instruments. This is a delivery nozzle assembly with a PEEK Center, Stainless Steel Nozzle Guide, Short Headless Tube Nut and 1/16 inch ferrule. It was used on the Dr. Oligo plate instruments for low volume amidite positions with 8 mm valves. It was also used on some Dr. Oligo 48 systems with 8 mm valves but was later replaced by a nozzle assembly that has a Teflon tube in place of the PEEK tube. The change to a Teflon tube was made because PEEK degrades in DCM and THF over time.
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