Try the New Vial Selection Tool from Restek

vialselect_prHaving trouble finding the vial you need? Restek’s new online vial selection tool gets you to the right vial fast. With just a few clicks you can choose the vial type, volume, color, modifications, and orifice size—and the tool will provide ordering information for the vial that meets your specifications. In just seconds, you’ll find the vial that meets your requirements, as well as recommended caps and closures. Build-a-vial technology shows you the vial configuration as you make your selections.

Learn more at www.restek.com/vial-selector

Impact of GC Parameters on the Separation Part 6: Choice of Carrier Gas and Linear Velocity

Author(s): Jaap de Zeeuw
Restek Corporation

Published By: Separation Science

Year of Publication: 2015

Link:  http://www.sepscience.com/Information/Archive/All-Articles/4188-/Impact-of-GC-Parameters-on-The-Separation-Part-6–Choice-of-Carrier-Gas-and-Linear-Velocity

Abstract: In part 1–5 of this series, we focused on the selection of the column dimensions and stationary phase. We also saw that temperature has a big impact on the chromatography. The last two factors, which are somewhat related, are the choice of carrier gas and the setting of linear gas velocity.

Restek Now Offers ID-Specific PressFit Connectors

PressFit ConnectorsAnalysts now have yet another option for GC column connectors when sourcing their chromatography supplies from Restek. With defined, ID-specific ends, deactivated borosilicate glass PressFit connectors offer increased sealability and are color coded for easy identification.

Whether you are connecting guard columns to analytical columns, repairing broken columns, or connecting columns to a transfer, Restek is your first and best choice for chromatography supplies.

Order today at www.restek.com/catalog/view/46605

Join Restek at EAS 2015

Going to EAS this year? If so, be sure to visit the Restek team at Booth 512. We would love to hear about your work, help you optimize your analyses, and show you why Restek is your first and best choice for chromatography.

2015 Eastern Analytical Symposium and Exposition (EAS)
November 16–18
Somerset, NJ, U.S.

Here’s a sneak peek at what we have planned for this year’s show. If you have any questions, feel free to contact the presenters directly, or ask us in person at the symposium. We are looking forward to sharing our latest innovations—and answering any questions you may have about how Restek® products and services can help you.

RESTEK® TECHNICAL PRESENTATIONS

Oral Presentations

MONDAY, NOVEMBER 16

#34 / 11:00 a.m.
Session: Bioanalysis and Biomarker Discovery
Title: A Multi-Class Drug and Metabolite Screen by LC-MS/MS
Sharon Lupo (presenter)
Restek Corporation
For more information, e-mail Sharon Lupo.

WEDNESDAY, NOVEMBER 18

#328 / 9:40 a.m.
Session: Analytical Testing for the Cannabis Industry: Consumer Safety vs. Regulatory Requirements
Title: Improved Gas Chromatographic (GC) Quantification of Acidic and Neutral Cannabinoids
Amanda Rigdon1 (presenter), Jack Cochran1, Joan Serdar2
   1) Restek Corporation, 2) Tetra Analytics
For more information, e-mail Amanda Rigdon.

Posters

MONDAY, NOVEMBER 16

#50 / 12:00–2:00 p.m.
Session: Bioanalysis I
Title:
The Analysis of Common Antiepileptic Drugs in Human Urine by LC-MS/MS
Randall L. Romesberg (presenter), Sharon Lupo, Cathy Hetrick
Restek Corporation
For more information, e-mail Randall Romesberg.

#77 / 12:00–2:00 p.m.
Session: Liquid Chromatography
Title:
A Multi-Class Drug and Metabolite Screen of 231 Analytes by LC-MS/MS
Cathy Hetrick (presenter), Randall L. Romesberg, Sharon Lupo
Restek Corporation
For more information, e-mail Cathy Hetrick.

#78 / 12:00–2:00 p.m.
Session: Liquid Chromatography
Title:
Rapid and Accurate LC-MS/MS Method for the Analysis of Nicotine, Nicotine Metabolites, and Minor Tobacco Alkaloid in Urine
Cathy Hetrick (presenter), Randall L. Romesberg, Sharon Lupo
Restek Corporation
For more information, e-mail Cathy Hetrick.

#79 / 12:00–2:00 p.m.
Session: Liquid Chromatography
Title:
Evaluating Mass Overload on Superficially Porous Particle
Randall L. Romesberg (presenter), Sharon Lupo, Cathy Hetrick
Restek Corporation
For more information, e-mail Randall Romesberg.

For more information, visit the EAS 2015 website.

Evaluation of Conditions of Comprehensive Two-Dimensional Gas Chromatography That Yield a Near-Theoretical Maximum in Peak Capacity Gain

Author(s): Matthew S. Klee1, Jack Cochran2, Mark Merrick3, Leonid M. Blumberg4

  1. XO Associates LLC
  2. Restek Corporation
  3. LECO
  4. Advachrom

Published By: Journal of Chromatography A

Year of Publication: 2015

Link: http://www.sciencedirect.com/science/article/pii/S0021967315000771

Abstract:

The peak capacity gain (Gn) of a GCxGC system is the ratio of the system peak capacity to that of an optimized one-dimensional GC analysis lasting the same time and providing the same detection limit. A near-theoretical maximum in Gn has been experimentally demonstrated in GCxGC-TOF based on a 60 m x 0.25 mm primary column. It was found that Gn was close to 9 compared to the theoretical maximum of about 11 for this system. A six-sigma peak capacity of 4500 was obtained during an 80 min heating ramp from 50 °C to 320 °C. Using peak deconvolution, 2242 individual peaks were determined in a Las Vegas runoff water sample. This is the first definitive experimental demonstration known to us of an order-of-magnitude Gn. The key factors enabling this gain were: relatively sharp (about 20 ms at half height) reinjection pulses into the secondary column, relatively long (60 m) primary column, the same diameters in primary and secondary columns, relatively low retention factor at the end of the secondary analysis (k ≅ 5 instead of 15, optimal for ideal conditions), optimum flow rate in both columns, and helium (rather than hydrogen) used as the carrier gas. The latter, while making the analysis 65% longer than if using H2, was a better match to the reinjection bandwidth and cycle time.

 

 

Restek Breaks Ground on 17,000 Square-Foot Wellness Center for Employees

Restek’s employee-owners ceremoniously broke ground on their new 17,000 square-foot Wellness Center, located on the company’s property in Penn Eagle Industrial Park in Bellefonte, PA.

The center, which the company plans to be using by April 2016, will offer employees and their families year-round recreation activities such as indoor soccer, basketball, yoga, and spinning.

Backed by the Restek Leadership Team, Wellness Center Committee, and founder Paul Silvis, Restek President Bryan Wolcott addresses the company.

Backed by the Restek Leadership Team, Wellness Center Committee, and founder Paul Silvis, Restek President Bryan Wolcott addresses the company.

Restek President Bryan Wolcott said focusing on the health and well-being of its employees is key to the company’s continued success.

“This project is not about a building—this is the beginning of a new era for Restek where we are able to increase our focus on health and wellness. By offering these benefits to employees and their families, we envision a greater energy, productivity, and quality of life,” Wolcott said.

Roger Greene, Restek's Learning & Development Specialist, officially launches the Wellness Center's construction.

Roger Greene, Restek’s Learning & Development Specialist, officially launches the Wellness Center’s construction.

In addition, the new facility will support the business by providing a large indoor space where employees can gather for company meetings and events, and it has also been designed to provide work space in the event of an emergency.

The facility is an extension of the wellness program created by Restek founder Paul Silvis in the late 1980s with nothing but a weight machine and punching bag. In 2004, Restek hired its first full-time wellness coordinator, and in 2005, the official Restek Wellness Program was introduced.

Read more about it: http://www.centredaily.com/news/article44729682.html

To learn more about Restek Corporation, visit www.restek.com

The employee-owners of Restek.

The employee-owners of Restek.