LCGC North America Application Note Alert Having trouble viewing this email? Click here Featured Application Note SPE-based QuEChERS for Cannabis, Food, Drugs Learn how an SPE-based QuEChERS method can efficiently increase the accuracy of pesticide determination in cannabis plants, produce, and drugs.   Sample Preparation Removing Lipids from Food Using LipiFiltr™ The LipiFiltr™ removes lipids from acetonitrile extracts. Samples are extracted using QuEChERS and an aliquot of the supernatant is pushed through the LipiFiltr™. 5 Minute EPA 3545 Extractions This application note demonstrates a new technology for 5 minute extractions of semi-volatile organic compounds from soil in accordance with EPA 3545.   HPLC Analysis of Antioxidants in Foods and Supplements Colorimetric reagents can be successfully used for analysis of antioxidants in foods and dietary supplements by HPLC with post-column derivatization.   GC Same Separation, Speedier Solution • Fast PAH Analysis at Low Levels Using the GC Accelerator Kit • Increase Sample Throughput with 15-Min, Low-Level PAH GC-MS Analysis   General Hydrogen Faster Safer Note discusses the benefits of switching from Helium to Hydrogen for carrier gas in gas chromatography. Understanding Measurement: Error, Contamination, and Carryover This application note will present information and techniques for improving measurement techniques and proper use of volumetric labware.