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Grass_lawn

Tali Weiss

Weizmann Institute of Science

The department of Brain Sciences

Sample in glass vial

20ml

Vacuum- assisted sorbent sampling

Sample details

Title Grass_lawn

Project Predicting perception of naturalistic odors from e-nose

Collection method Sample in glass vial

Collection volume (of the vial) 20ml

Did not weight No

Sample storage before sampling? No

Sampling method

Sampling method Vacuum- assisted sorbent sampling

Sorbent tubes length for TD 89mm

Volume of the container 13ml

Vacuum pressure in the container -0.08mPa

Sampling duration 60min

Sampling make up gas N2

Dry purge time 2min

Dry purge flow 50ml/min

TDU type Centri

Tube desorption stages 2

Desorb time 2min

Desorb temperature 150°C

Trap flow 50ml/min

Split on 0ml/min

Desorb time 3min

Desorb_temperature 240°C

Trap flow 50ml/min

Split on 0ml/min

GC-MS

Focusing trap Markes focusing trap

Focusing trap sorbent-packed UNITY-T12ME-2S Material emissions, C4 - C32

Desorb trap purge time 1min

Trap purge flow 40ml/min

Trap low temperature 10°C

Trap heating rate 100°C/s

Trap high (desorb) temperature 240°C

Trap desorb time 3min

Trap split Yes

Split flow 20ml/min

Column type DB-WAX-UI

Column constant flow 1.29ml/min

Column constant pressure 14psi

Length 30m

Inner diameter 0.25mm

Film thickness 0.5μm

Carrier gas He

Temperature ramps

Number of ramps 1

GC initial temperature 35°C

GC initial temperature hold time 1min

GC first temperature ramp rate 10°C/min

GC final temperature 220°C

GC final temperature hold time 1 min

Mass Spectrometer detectors BenchTOF2

Scan mass range 30-300

Data rate 8Hz

Ionisation -70eV

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