This concept seems simple today, but traditional nitrogen evaporators haven’t been overhauled for many years. Even in our lab we were not able to store evaporation methods… until now!
One of the hottest, yet most neglected topics in sample preparation is evaporation. Most chromatographic methods require some form of sample cleanup prior to injection into a HPLC or GC system to prevent clogging or undesired interferences. Many users opt to skip evaporation and perform a direct injection of the purified sample, but this is not always feasible.