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 4
Limits of detection and quantification and recoveries of 18 PAHs obtained by the compared methods.
Compound
LODa (ng)
LOQb (ng)
Recovery ± RSD (%)
GC-qMS
GC×GC-TOFMS
GC-qMS
GC×GC-TOFMS
GC-qMS
GC×GC-TOFMS
Nap
0.07
0.40
0.21
1.19
94.4 ± 4.2
135 ± 45
Acy
0.17
0.07
0.51
0.22
119 ± 12
116 ± 15
Ace
0.05
0.17
0.16
0.52
105 ± 5.3
105 ± 7.8
F
0.04
0.15
0.13
0.44
158 ± 28
130 ± 29
Phe
0.10
0.34
0.31
1.03
94.5 ± 5.3
86.3 ± 16
Ant
0.19
0.31
0.58
0.92
90.4 ± 4.6
95.1 ± 20
Fla
0.05
0.14
0.16
0.41
90.3 ± 3.9
105 ± 13
Pyr
0.08
0.36
0.25
1.09
97.4 ± 5.3
97.2 ± 13
BaA
0.12
0.09
0.37
0.27
93.4 ± 4.9
86.9 ± 8.2
Chr
0.04
0.08
0.13
0.24
95.8 ± 5.8
101 ± 16
BbF
0.05
0.18
0.15
0.53
96.1 ± 5.7
92.3 ± 10
BkF
0.09
0.35
0.28
1.05
94.2 ± 6.5
105 ± 12
BeP
0.13
0.13
0.40
0.38
92.6 ± 5.8
92.7 ± 5.7
BaP
0.12
0.24
0.37
0.72
93.6 ± 5.3
104 ± 9.0
Per
0.11
0.34
0.32
1.02
93.0 ± 5.5
92.5 ± 8.6
IP
0.15
0.65
0.16
1.94
95.0 ± 5.4
93.9 ± 8.5
DBahAnt
0.13
1.05
0.40
3.14
94.9 ± 5.5
95.8 ± 5.7
BghiPer
0.09
0.22
0.27
0.66
94.6 ± 6.0
87.0 ± 8.5
aLOD, smallest amount of analyte that is statistically different from the blank; bLOQ, smallest amount of analyte that can be measured with reasonable accuracy.
