What is a Rotovap? Rotary Evaporators are essential tools in a processing facility. The primary use for a rotary evaporator is the recovery of ethanol after a winterization or extraction process. It can be used to recover many other solvents as well as separate certain compounds, but for the simplicity of this guide, we will […]

What is Short Path Distillation? Short path distillation is a form of fractional distillation used to seperate an oleoresin into it’s active compounds. These active compounds can be described in three basic fractions: the heads, main body, and tails. We will discuss each at a later point in this post. Short path is an extremely […]

What is ashless filter paper? Ashless quantitative and qualitative filter paper are acid-washed cellulose lined laboratory grade filters which can be used for any application where a filter is needed. The difference between quantitative and qualitative filter paper comes down to what you are filtering. In most applications, if gravimetric analysis will be done on […]

Chiller, refrigerated circulator, recirculating chiller, heater, what is the difference?? Selecting the proper chiller for your application can be somewhat confusing especially with the large selection of chillers and circulators on the market. The term chiller, refrigerated circulator, and recirculating chiller are all interchangeable to a degree. No matter what name you choose to call […]

What is Closed Loop Extraction?  A “closed loop” refers to a system in which the entire process is done within a “closed” vessel. The solvent used to extract does not ever come in contact with the outside atmosphere. The “loop” portion refers to the recovery and reuse aspect of the system. The solvent will start […]

Closed Loop Extraction Components: To successfully perform closed loop extraction, you will need more than just a closed loop. Please refer to the following list of recommended components. Each component will be discussed in detail. -1. Closed Loop Extractor -2. Vacuum Pump -3. Solvent -4. Solvent Recovery Tank -5. Refrigerant Scale -6. Vacuum Oven or […]

What is a Vacuum Pump? Vacuum pumps are devices that remove gas molecules from a sealed chamber or container so that the atmosphere inside becomes extremely reduced or non-existant. Did you know that a diaphragm compressor can also be used with a small flow and low pressure or as a vacuum pump? It is a […]