Organic Membranes for Selectivity Enhancement of Metal Oxide Gas Sensors

Table 3

Retention capacities of the polyolefins LDPE, HDPE, PE + graphite, PP, and PMP. The values given are the arithmetic mean of three measurements.

Membrane	Sensor	H2	CO	CH4	Ethanol	Acetone	Acetald.
PE-LD	MOX	0,993	—	—	0,852	0,796	—
PE-HD	MOX	0,988	—	—	0,619	0,305	0,99
PE + C	MOX	—	—	—	0,997	0,993	—
PP	MOX	0,992	—	—	0,983	0,978	—
PMP	MOX	0,969	—	0,995	0,874	0,887	0,995