SKC DCS (Deployable Cartridge Sampler) System - Manual (Page 6)

3
PRINCIPLE OF OPERATION
A sample pump draws air at a fl ow rate of 10 L/min through nozzles on top of
the sampling head and into the cartridge. The cartridge is designed to be loaded
with a cleaned 47-mm quartz fi lter that collects particles and cleaned PUF or
XAD-2 sorbent that adsorbs gases and vapors. The aluminum foil-wrapped
cartridge is supplied in a PTFE jar so that the sample is protected from light and
contamination during transport. The fi lter and sorbent media are combined for
extraction followed by GC/MS analysis for EPA TO-13A or HRGC/HRMS for
EPA TO-9A.
Inlet section
PTFE O-ring
BUNA-N O-ring
Exhaust section
DCS Sample Head and
Leland Legacy Sample Pump -
the two main components of
the DCS System
Cartridge holder
section
Exploded view of the
DCS Sample Head