Does the Amount of Wool in Prepacked GC Liners Affect Performance?
Does the amount of wool in a GC liner affect performance? We examined response factor, peak area, peak tailing, and retention time for a variety of acidic and basic probes across a range of prepacked liners and here’s what we found.
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.
Simplify Glyphosate Analysis with This Direct Injection Method
In this approach for glyphosate in water, ppt-level sensitivity is easily achieved with direct 500 µL injections (no derivatization or ion pairing). The unique hybrid retention modes of Raptor Polar X columns optimize retention and elution such that large volume injection can be used to improve low-level sensitivity.
Adding Ultrashort-Chain PFAS (C2, C3) to Conventional PFAS Methods
Labs interested in adding ultrashort-chain compounds to an existing PFAS method can now do so with Raptor Polar X columns. The unique hybrid ligand (HILIC and ion exchange) provides effective retention and analysis of C2, C3, C4, C6, C8, and alternative PFAS in potable and non-potable waters.