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
The Chemistry of SPE
November 30, 2020 at 4:38 PM / by Maura Rury posted in SPE solid phase extraction, Solid-phase extraction, application, spe disk
If you’re like me, you start the new year off with a list of resolutions for the coming months – resolutions to be more fit or to secure a promotion at work, or to reduce your carbon footprint.
Why is it so important to air dry your SPE sorbent?
November 30, 2020 at 3:21 PM / by Deanna Bissonnette posted in tech tips, spe disk, epa method 525.2, C18 disk
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.
What does a thermistor do anyway?
November 30, 2020 at 3:13 PM / by Stephen Panos posted in Solid-phase extraction, biotage horizon 5000, thermistors
It is easier to understand something when you know what the actual word means. A thermistor is a portmanteau (yes, sometimes I do pay attention to linguistics) of the words thermal and resistor. This means that when a thermistor is heated, its resistance is either increased or decreased based on the properties of that particular thermistor.
Extraction of Polyphenols in Tea with Lemon
November 30, 2020 at 2:31 PM / by Andrew Taylor posted in EPA Method 8270, catechins, polyphenols
For thousands of years, tea has been one of the most popular drinks around the world. Not only is tea delicious, but it is also full of health benefits. Tea is an abundant source of antioxidants called polyphenols. One of these polyphenolic compounds, catechins, is found mostly in green tea.
Tackling Emulsions Just Got Easier
November 30, 2020 at 1:19 PM / by Maura Rury posted in SPE solid phase extraction, Solid-phase extraction, emulsions, LLE liquid-liquid extraction, LLE, application, awareness
Believe it or not, we’re all familiar with emulsions. Have you ever added food oil to a pot of water while cooking? That’s an emulsion. Do you put dressing on your salad? It should be called salad emulsion – although, that may not have the same edible appeal. Do you drink milk? Emulsion. What about milk? Butter? Eggs? All emulsions.
Simplified BPA Analysis
November 30, 2020 at 1:17 PM / by Andrew Taylor posted in SPE solid phase extraction, application, BPA, bisphenol