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4-Hr Shipping Facility Air Sample with radiello 145

ColumnRtx-VMS, 60 m, 0.25 mm ID, 1.40 µm (cat.# 19916)
with MXT low-dead-volume connector (cat.# 20536)
Standard/SampleShipping facility air sample
Injectionon-column
Oven
Oven Temp.:40 °C (hold 7 min) to 250 °C at 30 °C/min (hold 2 min)
Carrier GasHe, constant flow
Flow Rate:2.0 mL/min
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
28.8038226
Transfer Line Temp.:250 °C
Analyzer Type:Quadrupole
Source Type:Extractor
Extractor Lens:6 mm ID
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70 eV
Tune Type:BFB
Ionization Mode:EI
PreconcentratorMarkes Unity
  Trap 1 Settings
Type/Sorbent :radiello 145
Desorb temp.:350 °C
Desorb flow:50 mL/min
Desorb time:300 sec
  Trap 2 Settings
Type/Sorbent:Air Toxics
Cooling temp.:30 °C
Desorb temp.:310 °C
Desorb time:3 sec
InstrumentAgilent 7890B GC & 5977A MSD
NotesThe radiello 145 passive air sampler (RAD145) utilizes a stainless steel net cartridge packed with 350 mg of graphitized charcoal (Carbograph 4). Airborne volatile organic compounds (VOCs) were adsorbed to the charcoal and then thermally desorbed and analyzed by GC-MS.

Trap 1 conditions were used for radiello desorption. Trap 2 conditions were used for Unity desorption.