Frequently Asked Questions

Gas Chromatography Accessories

What ferrules do I use with my column?
How do I connect a fused silica guard column to a fused silica GC column?
Why can’t I get my Press-Tight® Connector to seal?
What is a Drilled Uniliner® inlet liner?
I need a fitting to…
What liner do I need for…?
Which injector part is the shell weldment and which is the weldment?
Why shouldn’t I use liquid leak detectors?
What septa should I use?
Why does Restek’s stainless steel tubing look like copper?
What are the advantages of the EZ-No-Vent™ GC Column-Mass Spectrometer Connector?
What is the function of the critical orifice in the EZ-No-Vent™ GC Column-Mass Spectrometer Connector?
Can I use my 0.25mm ID column with a Press-Tight® Connector?
How do I clean my injection port liners?
What gases will my Leak Detector™ detect?
Can an MXT® Union be used to connect fused silica capillary columns with different IDs?
What syringe needle point styles are available?
I cannot tell if this is the syringe I want. What do all the letters mean?
How can I tell when my Model V syringe valve is open or closed?
Why is my quartz liner white?
Can base-deactivated liners be re-deactivated?
What is the difference between angled and regular Press-Tight® Connectors?
What fitting do I need to remove a gas sample from an NPT outlet (such as from a regulator) with a syringe?
Should there be an O-ring between my SGT filter (cat# 22060 or 22062) and the baseplate it is mounted on?
Can Restek provide replacement filters and catalyst towers for Parker Zero Air Generators?
What cleaning process is used for Restek’s precleaned copper tubing (cat# 21590 and 21592)?
Could a Viton® O-ring bleed fluoranthene and pyrene?
How do I install a column in my Agilent 6890 instrument?