New Qualitative Retention Time Index Standard

GNPR2519-UNV_ImageRestek is pleased to release a new retention time index standard that contains both odd and even hydrocarbons C7-C33, making it appropriate for a wide range of retention index systems. Produced and tested in accordance with Restek’s ISO Guide 34 and 17025 accreditation, this certified reference material (CRM) is verified to be stable and accurate and is qualitatively analyzed to confirm composition. A certificate is available for each CRM lot.
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Restek Graduates Another LCC Student.


Sara with her son, Caleb, at LCC graduation

Congratulations to Sara Eyster on joining a long list of Leadership Centre County (LCC) alumni from Restek! Sara has been with Restek for nearly 14 years, and in her current position as a Quality Systems Administrator III, she helps to ensure ISO control and the product quality that you’ve come to rely on from Restek as part of her document control, internal auditing, and vendor auditing responsibilities.

Like Restek, LCC is dedicated to the concept of “servant leadership” and educates participants regarding the needs, available services, strengths, opportunities, and current issues in the Centre County community. Community leaders share their experiences with LCC students to improve their skills in order to increase the county leadership pool with people who are well-informed, networked, and qualified to lead. As evidence of the program’s value, several Restek-sponsored LCC graduates have gone on to leadership positions within Restek. For more information on LCC go to 

Analysis of Gases via Gas Chromatography: Part 3: CO and CO2

Author: Jaap de Zeeuw
Restek Corporation

Published By:  J. Sep. Sci.

Year of Publication: 2016


CO and CO2 are products that are present in many industrial processes. CO2 is used in many applications varying from propellants, refrigerants, preservatives, beverages, inert atmosphere, and fire extinguishers. It’s also used in oil recovery, supercritical solvent, and greenhouse analysis. Carbon dioxide is analyzed typically at higher levels (10 ppm – % level). CO is a toxic gas, but it is used mostly used as chemical precursor. Both CO and CO2 are analyzed at levels from 100 ppb to % level. Because these gases cannot be detected by FID, other detectors are required. One can also convert the CO/CO2 into methane to take advantage of FID sensitivity.