Overcoming drying and concentrating bottlenecks in the lab

Working in an environmental lab requires a lot of concentration, both mentally and for the samples that you are working with. When New England finally begins to thaw and local companies rush to get their samples completed, a bottleneck that is usually experienced is the drying and concentration of so many samples.  This bottleneck is partly due to ensuring that samples are extracted within their holding times. There have been many times I have had to multitask while concentrating samples on the TurboVap® classic, leading to some extra work when that rare sample was overconcentrated.  Many of my past coworkers brought up the challenge they faced with the extraction of water and soils. In my opinion, the bigger issue was drying and concentrating.  My main complaint with these steps was it was never efficient enough and I always had to baby each step so that all of my hard work (shaking the sample) did not go to waste.  What I strived for most in the lab was an efficient and streamlined workflow for this part of the process.

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How does your sample prep change for LC/MS vs GC/MS

When preparing your extracts for analysis, it is important to know which instrument to use and why you should be using that specific one.  Of course, we know that each EPA method dictates which analysis instrument must be used within each method, however, we will be determining why that option was chosen in the first place in this blog post! Continue reading How does your sample prep change for LC/MS vs GC/MS