Restek Is Presenting at NACRW 2020 Webinar

Though NACRW 2020 can’t be live and in-person this year, Restek is pleased to be part of its four-part webinar series.

Our own Joe Konschnik will be presenting the third webinar on “Unlocking the Mystery of Pesticides CRM Stability for Food Analysis,” on 13 October 2020, Tuesday, at 10:00 a.m. and 2:00 p.m., EDT.

Joe will be discussing how to properly handle and store pesticide CRMs to help ensure stability for food analysis. More information on Joe’s webinar is listed below. Additional NACRW webinars feature Steven Lehotay discussing the QuEChERSER mega-method for analyzing pesticides, veterinary drugs, and environmental contaminants; Jens Anderson explaining an alternative practice and procedure for QA/QC and metrology; and Jo Marie Cook presenting a best practice guide for reference materials used in trace-level analysis.

To learn more about the NACRW 2020 webinars, visit the site at



13 October 2020 Thursday, at 10:00 a.m. and 2:00 p.m. EDT

Unlocking the Mystery of Pesticides CRM Stability for Food Analysis

Joe Konschnik (presenter), Jason Fisher, Landon Wiest, Jana Rousova Hepner, Karen Risha

There is a growing global need for pesticide residues testing in a wide variety of food commodities. In response to this need, testing laboratories must develop versatile analytical methods and workflows in order to produce scientifically sound results which ensure the safety of our food. One of the many challenges faced by food chemists is acquiring suitable pesticide certified reference materials (CRMs) to calibrate analytical equipment, monitor method performance and confirm the identity and concentration of hundreds of pesticide residues in food samples. Questions regarding the stability of pesticide CRMs abound among users and there’s a need to educate and inform the community. CRM producers invest considerable resources to ensure the stability of their products. The authors will present proper CRM handling and storage practices as guidance to ensure stability based on the results of several multiresidue pesticide stability studies. The results of three pesticide mix stability studies will be shown demonstrating what can be expected after pesticide mix ampuls are opened and stored for use, and also when mixed together for routine LC-MS/MS and GC-MS/MS laboratory analysis.


Our NACRW 2015 Page is Now Live

Go to our NACRW page for a sneak peek at what we’ll be up to during this year’s show. You can also read abstracts for all of our presentations, easily contact the presenters, and access the NACRW website for additional event details.

We’re looking forward to sharing our latest innovations for food and environmental analysis—and answering any questions you may have about how Restek® products and services can help you. See you there!

Restek at NACRW 2015

Our NACRW 2013 Presentations Are Now Online

Did you have the chance to take in any of our technical posters or enjoy the Restek vendor seminar at NACRW 2013? There was so much to do — so much it was simply impossible to see everything — so we wanted to let you know that we’ve posted our presentations on our NACRW website:   Review them at your leisure, and feel free to get in touch with the authors directly to discuss them further.

Restek would also like to take this opportunity to congratulate our own Dr. Julie Kowalski for being elected as the 2015 NACRW president! She has been an active member of the organizing committee for the Florida Pesticide Residue Workshop (FPRW)—now known as the North American Chemical Residue Workshop (NACRW)—and was instrumental in setting up the meeting’s first-ever social event: the Dali Museum visit. Having just finished its 50th year, NACRW has earned wide acclaim in the industry, and we look forward to seeing Julie at its helm in 2015.