Perma Pure Dryer Best Practices
Perma Pure Dryer Best Practices Reviews best practices for integrating Perma Pure gas dryers in systems and experiments Subscribe Here to Receive our Resources Notice: JavaScript is required for this content.
Sulfuric Acid Dew Point Calculator
Sulfuric Acid Dew Point Calculator Calculate the dew point of a gas, accounting for the acid concentration. CEMS applications. Dew point is the temperature at which condensation will form. To calculate the dew point of a stream which takes into account the acid concentration, use the calculator below. As a practical matter, most samples of gases…
Nafion™ Polymer Selectivity Calculator
Nafion™ Polymer Selectivity Calculator Determine Nafion™ Polymers permeability to different chemicals Choose an analyte Ammonia Ammonium Hydroxide Acetaldehyde Acetic Acid Acetone (Dimethyl ketone) Acetonitrile (Methyl Cyanide) Acrolein (vinyl aldehyde) Anisole Benzaldehyde Benzene Benzonitrile (Phenyl Cyanide) Boron Trifluoride Bromoform Carbon Dioxide Carbon Disulfide Carbon Monoxide Chlorine Chloroethane Chloroform Crotonaldehyde Cumene Diacetyl Diethyl carbitol Dimethylacetamide Dioxane Dimethylformamide (DMF) DMS…
Why is Nafion™ Tubing the solution to moisture in Pulmonary Function Testing?
Nafion™ is a polymer that can add/remove select materials, including water vapor, to a gas stream through a first order kinetic reaction (a chemical reaction). Because it’s non-porous, other molecules cannot pass through it. This unique property makes it ideal for medical applications such as removing water vapor from breath samples or adding humidity to…
All About Nafion™ Polymer
Perma Pure’s Nafion™ polymer is often referred the wonder material for its unique ability to transfer moisture from one side of the membrane to the other. This transfer occurs as a first order kinetic reaction making it highly selective. What is Nafion™ Polymer The Nafion™ polymer was invented by Walther Groth in late 1960s. Nafion™…
Pros and cons of top gas drying methods for gas analyzers
A review and comparison of common methods to remove moisture from a gas for analysis. Too much moisture in a gas being analyzed can decrease accuracy of the analysis, damage the gas analyzer, or both. To avoid this, a gas dryer is often used to dry the sample gas, before it is sent into the…
What Humidity Challenges do Engineers Face?
When designing medical equipment, engineers can often feel like Goldilocks when it comes to humidity: there’s too much or too little—and their challenge is to make it just right. Too Much Humidity is a Frequent Problem The air (or a gas) can only hold so much water vapor. Depending on external factors like temperature and…
How Does Nafion™ Tubing Solve Humidity Challenges?
Nafion™ is a polymer that add/remove select materials, including water vapor, to a gas stream through a first order kinetic reaction (a chemical reaction). Because it’s non-porous, other molecules cannot pass through it. This unique property makes it ideal for medical applications such as removing water vapor from breath samples or adding humidity to gas…
The Secret to Removing 90% of Moisture from a Patient’s Breath Sample
Breath has lots of moisture. To see, just blow on a mirror and watch it fog up. Getting rid of the moisture on the mirror is easy: just wipe it off. Getting rid of moisture in a breath sample is more complex, but can be done with a bit of engineering and Nafion™ tubing. We…
Humidity’s Impact on Medical Devices, Part One
When hearing terms like humidity and relative humidity, people often think about the weather. This is because water vapor has an impact on how humans perceive comfort; both high humidity and low humidity can make people feel uncomfortable. You might already be aware that amount of water vapor present in air can impact how a…