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You might be saying to yourself, QuEChERS isn’t an extraction, it’s just QuEChERS! I know when I think extraction, I think of your traditional liquid-liquid or solid-phase extraction where you have a ...
When it comes to chromatographic analysis, it’s no surprise that the analytes of interest are the main focus. After all, those are the compounds one wishes to isolate and quantitate to report to their...
Synthesis workflow is the journey taken by chemists when creating a molecule. This journey can be like taking the interstate with no traffic lights and higher speed limits but usually this trip is mor...
While polar compound purification is frequently performed using a silica column and a DCM/MeOH solvent system, there is a need to reduce its use in chromatography for a number of reasons. First, dichl...
If you are working in an environmental lab and encounter tissue samples and highly contaminated petroleum soil samples that create a lot of noise and interference on your analytical instruments, then ...
Environmental laboratories are often required to demonstrate that their procedures do not introduce background contamination or interferences that would result in false positives or poor analytical pe...
Automated sample prep helps your lab to run more smoothly. Sample prep is often seen as a painful process that is time-consuming, laborious, complex, error-prone, and costly. But efficient sample prep...
For most organic reaction mixture purifications the process is fairly straightforward. Use hexane/ethyl acetate or, for polar compounds, DCM/MeOH. But what do you do if this doesn't work and your comp...
One of the more challenging purifications is that of water-soluble, ionizable compounds. Typically, normal-phase with silica is not used because of the probable non-reversible interactions, especially...
I have recently posted on how solvent choice influences the separation of hard to resolve compounds using normal-phase flash chromatography. As a chemist with an inquiring mind, I thought I would expa...