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      Deanna Bissonnette

      Deanna is an Application Chemist at Biotage. She became a part of Biotage in October 2018.  Her current role involves quality control testing the media that arrives for the production of Atlantic® Disks and Atlantic® ReadyDisks.  Deanna tests the disks and other products that Biotage sells in order to ensure the quality of the products for customers.  Deanna supports the marketing team as well as the application group with application notes. Deanna is a graduate from Saint Anselm College where she obtained her Bachelor's degree in Forensic Science.  She is very interested in the Analytical Chemistry side of her college education, so this position, as an application chemist, is a great place for her to start her career.

      Recent Posts

      Performance vs. Prescriptive Based EPA Methodology

      June 17, 2021 at 2:00 PM / by Deanna Bissonnette posted in SPE solid phase extraction, perscriptive, performance, EPA

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      I am willing to bet there have been a few people reading this that early in their careers have had a moment of “what does that mean” when learning new procedures and or methods. You are about to learn mine. When I was onboarding and learning new standard operating procedures and methods one really stood out and still does to this day. It was when I was first exposed to EPA method 1664B. It stated right in the introduction it is a performance-based method. I thought to myself what does a performance-based method consist of and how do all labs qualify to run it?

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      The Importance of Quality Control on Lab Solvents & SPE Consumables

      April 22, 2021 at 5:00 PM / by Deanna Bissonnette posted in SPE solid phase extraction, epa method 525.2, epa method 525.3, quality control, spe consumables

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      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 to go before running real-life samples and risk losing that sample. Not only that, but QC samples also help to identify any background in your lab's extraction procedures.

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      In Honor of World Water Day!

      March 22, 2021 at 12:38 PM / by Deanna Bissonnette posted in water

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      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 challenge you to use significantly less water on March 22, than you use on a regular basis. Some examples include: turning off the water while you brush your teeth or wash your face; taking a two minute shower; making sure the washing machine is full before doing a partial load; collecting the water in the sink to soak other dishes while washing dishes; and so much more!

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      4 Tips to Keep Your Solvent Evaporator in TipTop Shape

      February 25, 2021 at 2:00 AM / by Deanna Bissonnette posted in tech tips, solvent evaporation, evaporation systems, solvent drying, preventative maintenance

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      “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 my instrument than maintaining it. It seems unnecessary. I’m a fan of what I call “sensory maintenance” – that water looks pretty clean, that pump sounds pretty good.

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      Why Move to Manual or Automated Solid Phase Extraction?

      December 17, 2020 at 1:43 PM / by Deanna Bissonnette posted in SPE solid phase extraction, LLE liquid-liquid extraction, application

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      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 automated options available for solid phase extraction. It may seem like more work for your lab to move to a different technique, but what you gain in time savings may be worth it to you in the end.

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      Everything You Wanted to Know About EPA Method 8270 But Were Afraid to Ask

      December 16, 2020 at 2:17 PM / by Deanna Bissonnette posted in SPE solid phase extraction, EPA Method 8270, application

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      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 guidelines in this method.

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      Common Mistakes by the Lab Series: The Pain of Contaminated Squeeze Bottles

      December 16, 2020 at 9:42 AM / by Deanna Bissonnette posted in Sample preparation, Solid-phase extraction, SPE, phthalates

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      Ugh…I think we can all agree that the worst thing that can happen when testing high profile samples is losing an extract due to phthalate contamination. Whether you are extracting 525.2 or 625.1 samples, phthalates can ruin your day and wreak great havoc, causing false positives!

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      Simplifying Water Extractions with SPE – One Matrix, One Method Extraction

      December 15, 2020 at 1:09 PM / by Deanna Bissonnette posted in Sample preparation, Solid-phase extraction, water extractions

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      Have you ever thought to yourself I wish there was one way to effectively extract all of our aqueous samples? For instance, there are several methods available to extract aqueous samples, such as extraction method 3510 liquid-liquid extraction (LLE), method 3520 continuous liquid-liquid extraction (CLLE), and method 3535 solid-phase extraction (SPE). Wouldn’t it be more convenient to use one extraction method within the lab for most if not all of your aqueous extractions?

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

      December 15, 2020 at 11:02 AM / by Deanna Bissonnette posted in LC-MS, GC-MS, Sample preparation, drying extracts, drydisk, gas chromatography, liquid chromatography

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      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!

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      Are You Contaminating Your Samples During Evaporation?

      December 14, 2020 at 3:09 PM / by Deanna Bissonnette posted in tech tips, solvent evaporation

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      “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 organic solvent – only to add that water back in during your evaporation step!  There are fewer frustrating situations than losing a set of extracts in this manner.

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