Direct, Simultaneous Analysis of Ultrashort-Chain, Alternative, and Legacy PFAS
As interest grows in monitoring a wider range of PFAS in potable and non-potable waters, efficient methodology becomes vital. Here, we developed a novel approach that provides concurrent analysis of ultrashort-chain PFAS along with alternative and legacy compounds.
Improve PCB Congener Identification Using the Ortho Effect
Ever hear of “the ortho effect”? It’s a helpful, yet little known, phenomenon that can be used to improve certainty in PCB congener identification. This article explores the ortho effect and demonstrates how specific chlorine substitution patterns can stabilize particular ions and improve MS detection.
An Introduction to New Method OTM-45 for Analyzing PFAS in Air Emissions
Analyzing PFAS in air is quickly emerging as the next frontier in PFAS testing, and EPA’s Other Test Method 45 (OTM-45) was released earlier this year to promote consistency and current best practices. In part 1 of this new blog series, we cover what you need to know about the sample collection setup for stack gas emissions.
Split vs. Splitless: Which GC Injection Mode Should I Use?
Split and splitless are the two most common GC injection techniques. But how do you know which to use? In this video, we follow a sample through split and splitless injections and compare the strengths of each technique to help you choose the right one for your analysis.