Reliable Low-Level Analysis of Glycols in Water Using Split Injection

Author: Corby Hilliard and Chris English

Published By: Restek Corporation

Year of Publication: 2018

Link: http://www.restek.com/Technical-Resources/Technical-Library/Environmental/enviro_EVAN2873-UNV

Abstract: 

Obtaining consistent results for low-level analysis of glycols in water samples is difficult when using splitless injection due primarily to issues with backflash, poor peak shape, and shifting retention times. The split injection method shown here avoids these problems and reliably produces good chromatographic results. Lifetime testing demonstrated that Rtx-Wax columns produce stable results, even after column integrity was challenged with 600 water injections.

Accurate Analysis of Glycerol and Glycerides in Biodiesel Oil Using EN 14105 (2011) and Robust Metal MXT Columns

Published By: Restek Corporation

Year of Publication: 2018

Link: http://www.restek.com/Technical-Resources/Technical-Library/Petroleum-Petrochemical/petro_PCAR2872-UNV

Abstract: The high temperatures required to analyze glycerol and glyceride contaminants in biodiesel can result in short column lifetimes and more downtime for maintenance. Metal MXT-Biodiesel TG columns are more durable and longer lasting than their fused silica column counterparts, making them a better choice for labs wanting to minimize downtime. As demonstrated here, MXT-Biodiesel columns meet method EN 14105 (2011) performance requirements and provide excellent chromatographic results for biodiesel testing.

 

Restek Holds 1st Annual Student Research Symposium

Andrew Murtha

Jovan Livada

Latisha Franklin

Roman Jaramillo

Restek recently held its 1st Annual Student Research Symposium at its global headquarters in Bellefonte, PA, as part of our commitment to developing the next generation of scientists.

During the event, Restek chemists and leadership gave talks on gas chromatography in space, olfactory detection, and bile acid analysis by liquid chromatography, but more important, in addition to learning more about STEM careers, students prepared and presented posters on a variety of topics. Posters were judged by a panel of Restek technical experts, who were impressed by the high quality of work on display.

Although all of the presenters are deserving of accolades, the organizers especially wanted to congratulate our winners:

First Place ($1,000) – Andrew Murtha, “Communication Between Vibrio fischeri Populations within the Squid Light Organ”
Second Place ($500) – Latisha Franklin, “Inborn Errors in Purine Metabolism Result in Neuromuscular Deficits: A Comparative Metabolic Approach”
Third Place ($250) – Nathan Yu, “Homogeneity of Packing in Silica Separation Column”

This year, undergraduate and graduate student researchers from Penn State were invited to network and showcase their work. Next year, Restek plans to expand the program.

Are you a student interested in applying for next year’s symposium? Watch for an announcement later this year or email Alex Pavkovich.

Restek Partners with Girl Scouts for STEM Expos

Picture of Girl Scouts at STEM event.

Two Girl Scouts conduct experiments with
Restek’s Titus Morehead at Girl Scouts in the Heart of Pennsylvania’s recent STEM Expo at Pennsylvania College of Technology.

Alexandria Pavkovich, an R&D chemist at Restek, watched the face of a young girl light up when she created a mini lava lamp by adding an Alka-Seltzer tablet to her 40 mL vial mixture of colored water and mineral oil.

It was Feb. 17 at the Pennsylvania College of Technology in Williamsport, PA, and the experiment was one of two Restek brought with them to the first of three STEM Expos that the Girl Scouts in the Heart of Pennsylvania (GSHPA) will host this year. Restek also had a gumball separation demo.

“It felt like a big hit and they were excited they could take their lava lamps home to show their friends and family.” Pavkovich said. “I take a great interest in getting girls into science. Some of them are coming from a smaller area and it’s fun to broaden their experience and spark an interest in science.”

More than 1,500 Girl Scouts in grades kindergarten through 12 have registered to attend the free expos featuring dozens of activities provided by program partners that bring science, technology, engineering, and mathematics (STEM) skill-building opportunities directly to girls. Another Expo was held recently at East Stroudsburg University and the final one will be Saturday, May 19, at Millersville University.

“Girls are learning about STEM because of companies like Restek. The dedication of employees in giving their time and expertise never ceases to amaze me. GSHPA’s mission is to build girls of courage, confidence, and character who make the world a better place. We are successful because supporters like Restek invest in our girls and help create the next generation of successful female leaders,” Ellen M. Kyzer, President & CEO of GSHPA, said.

Restek is committed to supporting local STEM programs and often attends elementary and middle school STEM fairs.

“You don’t get this kind opportunity at every company. It’s great that we get to spread our love of science to the younger generation,” Pavkovich said. “You see their minds spark with curiosity as they engage, understand, and begin to see possibilities unfold. It’s pretty inspiring to watch them find joy in both scientific discovery and also in the realization that they have the potential to become anything they want to be.”

Accompanying Pavkovich from Restek were Joe Windell, Jana Rousova, and Titus Morehead.

Other exhibitors include Pocono Environmental Education Center; Scranton/Wilkes-Barre RailRiders; Association for Women in Mathematics; Wildlands Conservancy; Lincoln Caverns; AccuWeather; and Da Vinci Science Center.

For more information about Girl Scouts in the Heart of Pennsylvania, visit www.gshpa.org.