利用微量热仪搭配气体灌注附件研究活性炭与各种有机溶剂的吸附热
A common technique for sampling organic solvents in workplace air is the use of preconcentration of vapors on adsorbents. The most widely used adsorbent is activated carbon, due to its large sampling capacity. After desorption (thermal or displacement by other solvents such as carbon disulfide), analysis is made by gas chromatography. In order to avoid breakthrough, the collected amount is usually 10% of the maximum capacity (total pore volume).