Attention:

Certain features of Sigma-Aldrich.com will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.

Empty Glass GC Columns

All empty glass columns are made in our in-house glass shop, thereby controlling quality at a high level. Over 500 column configurations are currently on hand. All glass columns also undergo a proprietary high temperature silanization to ensure inertness. Fittings are not included.

TightSpec columns conform to within +/-6 mm of their stated lengths. Other columns conform to within 1.5% of instrument manufacturers′ length specifications.