Air samples were drawn through a PTFE Teflon tube (external diameter 6.35 mm) into the monitor. ... were used to connect the tip and a PTFE tube (2.4 m x 3 mm outside diameter) that was connected to the S02 cylinder. On gradually increased outlet pressure of the S02 cylinder, the flow rate initially increased with pressure; eventually the flow ... Schematic block diagram of sample preconcen- tration device coupled with gas chromatograph- sulfur chemiluminescence detector used toanbsp;...
|Title||:||Journal of the Chinese Chemical Society ...|
|Author||:||Chinese Chemical Society|