GC-FID and Olfactometry-Assisted Assessment of Odors from Polymeric Foams under Normal and Repeated-Use Conditions

Table 3

Thermal desorption and GC-FID parameters used in the study (same GC used in part 1 of the study [15]).

Thermal desorption: short path thermal desorption controller model TD-4, serial J210
Temperature and time conditions of thermal desorption
Operation	Time (s)	Temperature (°C)
Gas purge time	300	—
Injection time	30	—
Desorption time	180	200 (initial)-250 (final)
GC start delay	30
Gas chromatograph: Agilent Technologies with FID HPST 4890 GC system
Thermostat
Initial temp (°C)	40
Initial time (min)	2
Ramp	Temperature rise rate (°C·min^-1)	Final temp (°C)	Final time (min)
	8	240	2
Run time (min)	29	29	29
Front inlet
Mode	Split
Temp (°C)	250
Pressure (kPa)	62.9
Split ratio	40 : 1
Split flow (mL·min^-1)	47.9
Total flow (mL·min^-1)	52.6
Gas type	Nitrogen
Column
Capillary column type:	Agilent HP-5MS (5% phenyl methyl siloxane)
Max. temperature (°C)	325
Nominal length (m)	30
Nominal diameter (μm)	320
Nominal film thickness (μm)	0.5
Initial flow (mL·min^-1)	1.2
Average velocity (cm·sec^-1)	40
Nominal initial pressure (kPa)	63
Outlet	MSD
Outlet pressure	Vacuum
Detectors
Detector A	FID
Detector B	Olfactometry; panel assisted