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      Pesticide Contamination – Is That Water Safe to Drink?

      March 21, 2021 at 1:45 PM / by Maura Rury posted in contamination, pesticide, extraction, safe water, Smartprep, SPE-DEX 5000

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      Have you ever spent the day walking through the woods, paused to take in the natural sights, smells and sounds of a babbling brook or flowing waterfall and thought….“I wonder how many pesticides are in that water?”

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      EPA Methods and the Use of Drying Techniques

      November 30, 2020 at 4:43 PM / by Deanna Bissonnette posted in SPE solid phase extraction, contamination, solvent evaporation, EPA Method, Drying, application, sodium sulfate

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      Do you ever tire of using sodium sulfate 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 sulfate is when you do not use enough of it, and the sodium sulfate reaches its maximum capacity leading to water breakthrough into your ‘what was supposed to be a dried extract.’ Then, you must dry the extract again with more sodium sulfate.

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