Instrument - Temperature Programmed Thermal Desorption Particle Beam Mass Spectrometer

Short name:

Full name:
Temperature Programmed Thermal Desorption Particle Beam Mass Spectrometer

What is being measured:
Particle Chemical Composition

Sampling Protocol:



Instrument year :
None specified

Data recording software:
Merlin and NI-DAQ with Labview recorded by MICAS-X

Data analysis software:

Raw data time resolution:
5 s

Analysis data averaging:

Detection limit:
10 ng

Sensitivity to temperature (and correction method, if applicable): :

Sensitivity to relative humidity (and correction method, if applicable): :

Sampling method:
Collection of 1-2 ug particles onto -40 C vaporizer

Sample preparation method:

Sample residence time (chamber to instrument) (seconds):

Length of tubing (cm):

Instrument flow rate:

Tubing inner diameter:

Tubing material:

Chemical identification method:
Thermal desorption of compounds by volatility and identification by electron impact ionization. Masses from the same compound will desorb at the same temperature.

Data analysis method:

Quantification method:
Estimated of total mass is proportional to EI signal.

Calibration method:

Calibration drift estimate:
Medium (on the order of days)

Calibration schedule:

Uncertainty estimation method:
Uncertainty is estimated to be +/- 30%, based on the assumption that electron ionization signal is proportional to total mass.

Known interferences:

Link to supplemental information:

Additional notes:

Measurement uncertainty:
All measurements from this instrument have uncertainties of 30% of absolute value.

Measurement units:
ug m^-3