Showing posts written by Deanna Bissonnette
Have you ever put your water sample onto your Biotage® Horizon 3100 extractor and all your prewet/conditioning steps worked great and then suddenly, the water inlet valve opens, and nothing happens! T...
Every step within a solid phase extraction (SPE) procedure is imperative, but one of the most important steps that must be done properly is the air-dry step.
On the surface, EPA Method 8270 seems pretty straightforward. The first version of this method was published over a decade ago and many environmental labs are processing samples according to the guide...
If you are tired of shaking liquid-liquid extractions (LLE) and want to move onto a technique that is less labor-intensive, solid phase extraction (SPE) may be your answer! There are manual as well as...
Do you ever tire of using sodium sulphate to dry your extracts? I know I do. That is why, whenever I get the chance to avoid using it, I do. The worst experience when using sodium sulphate is when you...
“I love doing maintenance. It’s the best part of my week” – said nobody ever. Let’s be honest. We all dread performing maintenance. Why? It’s boring. I’m a chemist and I’d rather spend my time using m...
Happy World Water Day!! I know I love water, so as some take the time to cherish their loved ones on Valentine’s Day, why not take World Water Day to cherish and appreciate our freshwater?! I challeng...
Ever wonder if you need to perform quality control (QC) on solvents and solid phase extraction (SPE) consumables? Well, the answer is yes! You want to make sure that your disks and solvents are good t...
“Water in my extracts again?!?!” How many of you have been in that position? You’ve worked hard to extract your samples, you’ve dried your extracts to remove the last droplets of water from your organ...
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 analysi...