CEM Corporation

More and more regulations regarding PFAS are being implemented with action limits that continue to decrease. Having a harmonized method to accurately determine the PFAS content in food, as well as other matrices, is important to ensuring long-term detection and regulation. The solvent extraction of PFAS from these varied sample matrices can be challenging given the susceptibility to contamination and the low levels in which these compounds are present. This poster, presented at RAFA 2024, examines the PFAS extraction several different food samples as well as food packing matrices.

PFAS have been shown to cause health issues in humans, which means monitoring environmental solid samples, such as soil and tissue, is critical. This application note details the extraction of 40 spiked PFAS compounds from soil and tissue following EPA Method 1633. The automated extraction was less than 10 minutes per sample and yielded acceptable recoveries and RSDs without carryover in the system. The EDGE PFAS is an ideal option for laboratories that want to automate their PFAS extractions of solid samples.

Existing solvent extraction techniques are predominantly manual methods that are not rapid, simple, or efficient. The EDGE PFAS™, an automated solvent extraction system, provides an automated, sequential approach to PFAS extraction. This system performs an efficient extraction of PFAS compounds from challenging food and food packaging matrices in one simple process. Upon completion, the final extract is filtered and ready for any minimal cleanup required, as well as analysis. Excellent recovery with tight reproducibility has been found. The EDGE PFAS method offers a rapid, simple, and efficient solvent extraction solution for PFAS testing.

Webinar Date/Time: Wed, May 29, 2024 11:00 AM EDT

The nutrition profile of food is critical for assessing its quality. In this poster the amino acids in soy flour were hydrolyzed using a Discover Prep microwave system.

Plant-based proteins are becoming a mainstay to grocery stores, restaurants, and retailers. Amino acids in vegan cream cheese are herein hydrolyzed and analyzed.

In this app note, we perform amino acid hydrolysis of proteins to identify and quantify each amino acid utilizing a safe and rapid amino acid hydrolysis protocol.

Protein analysis plays a large role in the production of foods, pet foods, and even pharmaceutical medicines. But first, the amino acids in the protein must be broken down.

Peptide therapeutics are held to high regulatory standards. Discover Prep was used to hydrolyze the amino acids of a peptide in only 15 minutes, instead of 24 hours.

Classical protocol of amino acid hydrolysis needs up to 24 h of reaction time. Using the Discover Prep, the same level of acid and base hydrolysis was achieved in minutes.

Webinar Dates/Times: Tuesday December 6th, 2022 Morning session: 1:00pm GMT -3:30pm GMT Afternoon session: 3:30pm GMT- 4:00pm GMT Wednesday, December 7th, 2022 Morning session: 1:00pm GMT -3:00pm GMT Afternoon session: 3:30pm GMT- 4:00pm GMT

Wed, Oct 26, 2022 11:00 AM EDT Plastics are an integral part of everyday life but analyzing their composition can be a challenge. Tune in to learn about a variety of extraction techniques that will increase sample throughput while yielding superior sample prep.

This application note demonstrates the performance of the miniLC LC–UV analyzer for the analysis of catechins and epicatechins in teas.

Pesticide testing is crucial to assessing the safety of fruits and vegetables for consumption. The traditional extraction method for pesticides from produce is the QuEChERS method. This method is tedious, manual, time consuming, and wasteful. Thus, there is a need for improved methods of extraction. In this application note, the EDGE®, in combination with Q-Matrix™ Hydra, a water-removing sorbent, was used to extract a panel of pesticides from 10 g of homogenized cucumber, tomato, and green pepper in less than 9 min. The recoveries of the pesticide panel were greater than 70% for each matrix tested, and these results were highly reproducible. The EDGE provides a fully automated extraction that combines both the sample and sorbent into one sample vessel, alleviating the human burden of extraction and the need for multiple sample transfers.

In order to evaluate and test the robustness of cannabinoid analysis using the miniLC, a method was chosen from the literature and compared to data from the miniLC system. Comparison of retention time of standards to published values indicates the miniLC provides an excellent alternative with comparable results to a more expensive, complicated liquid chromatography system

Monday, July 19, 2021, 02:00 PM EDT Tuesday, July 20, 2021, 02:00 PM EDT Join us for this free online event to learn about important developments in the analysis of contaminants in a wide range of food and environmental matrices using a range of chromatographic, detection, and sample preparation techniques. A few hours of your time will deliver enormous benefits for your work.

Automated liquid extraction of pesticides from tea that eliminates the use of salts and sorbents. In less than 15 min, get filtered sample that is ready for analysis.

Extract pesticides from cannabis flower and edibles with one simple automated method. In less than 15 minutes you will be ready for analysis and on to the next sample.

***Thursday and Friday May 13-14 | May 20-21, 2021*** In the relaxed and unconventional talks in this symposium, highly experienced speakers from industry and academia will impart key learnings from their long experience with chromatography—from heroic failures that have taught them valuable lessons, to moments of inspirational serendipity, and everything in between. CHROMTalks will deliver lifetimes of learning in condensed form, covering topics across implementation, troubleshooting, and method development of analytical techniques. Time spent at CHROMTalks will pay back as soon as you enter your laboratory! ***Available On Demand Until May 21, 2022***