Analysis of Polycyclic Aromatic Hydrocarbons in Ambient Aerosols by Using One-Dimensional and Comprehensive Two-Dimensional Gas Chromatography Combined with Mass Spectrometric Method: A Comparative Study
Table 3
Relative response factors (RRFs) and calibrations of 18 PAHs obtained by the compared methods.
Compound
GC-qMS
GC×GC-TOFMS
RRFa
Slope
Intercept
R2
RRF
Slope
Intercept
R2
Nap
1.04
0.515
−0.003
0.9999
1.69
0.560
0.049
0.9971
Acy
1.57
0.808
−0.004
1.0000
1.95
1.026
−0.012
0.9999
Ace
1.03
0.439
0.009
0.9999
1.16
0.553
−0.006
0.9994
F
1.29
0.667
−0.006
1.0000
1.11
0.609
−0.021
0.9997
Phe
1.17
0.572
−0.004
0.9998
1.47
0.763
−0.039
0.9979
Ant
0.98
0.547
−0.017
0.9992
0.93
0.431
−0.010
0.9982
Fla
1.30
0.678
−0.001
1.0000
1.43
0.802
−0.021
0.9995
Pyr
1.31
0.686
−0.004
0.9999
1.62
0.910
−0.055
0.9972
BaA
0.98
0.575
−0.019
0.9997
1.42
0.574
−0.004
0.9998
Chr
1.06
0.563
−0.003
1.0000
1.26
0.651
−0.005
0.9998
BbF
0.99
0.535
−0.008
0.9999
1.69
0.848
−0.028
0.9993
BkF
1.11
0.576
−0.011
0.9998
0.88
0.327
−0.012
0.9977
BeP
0.91
0.455
−0.007
0.9996
0.90
0.530
−0.014
0.9997
BaP
0.88
0.505
−0.014
0.9997
0.83
0.477
−0.030
0.9985
Per
0.89
0.475
−0.008
0.9998
1.11
0.521
-0.023
0.9979
IP
1.37
0.717
−0.023
0.9995
1.25
0.660
-0.062
0.9922
DBahAnt
1.24
0.629
−0.019
0.9996
1.16
0.490
-0.074
0.9898
BghiPer
1.24
0.594
−0.010
1.000
1.53
0.710
-0.036
0.9991
aRRF expresses the sensitivity of a detector for a given analyte relative to its corresponding deuterated internal standards; , where is the peak area of a quantifying ion for a given analyte being measured; is the peak area of a quantifying ion for its corresponding internal standard; is the concentration of a given analyte; and is the concentration of its corresponding internal standard.
