Instrument - HR-ToF-AMS
Short name:
AMS (Near, mass spec)
Full name:
HR-ToF-AMS
What is being measured:
Non-refractory particle composition
Sampling Protocol:
Online
Manufacturer:
Aerodyne
Model:
N/A
Instrument year
:
None specified
Data recording software:
ToF-AMS DAQ 4.024beta
Data analysis software:
SQ 1.62A, PIKA 1.22A
Raw data time resolution:
Every minute
Analysis data averaging:
Detection limit:
0.003 μg/m3
Sensitivity to temperature (and correction method, if applicable):
:
Yes
Sensitivity to relative humidity (and correction method, if applicable):
:
Yes
Sampling method:
Direct sampling
Sample preparation method:
Sample residence time (chamber to instrument) (seconds):
Length of tubing (cm):
420
Instrument flow rate:
0.08
Tubing inner diameter:
1/4 inch
Tubing material:
Stainless Steel
Chemical identification method:
Mass spectrometery with electron impact ionization.
Data analysis method:
Quantification method:
Calibration method:
Ionization efficiency and relative ionization effeciencies of the instrument are calibrated with pure 300nm ammonium nitrate particles and pure 300nm ammonium sulfate particles every other week.
Calibration drift estimate:
Calibration schedule:
As Needed
Uncertainty estimation method:
Filter runs before the sampling
Known interferences:
Air and inorganic salts can inteference with organic signals
Link to supplemental information:
Additional notes:
Measurement uncertainty:
40%
Measurement units:
ug/m3