Table 2 Chromatographic and mass spectrometric characterization of target compounds.

From: Chemical investigation of polycyclic aromatic hydrocarbon sources in an urban area with complex air quality challenges

Compounds

Abbreviations

Retention time (min)

Characteristic ions (m/z)

LOD (ng m−3)

Naphthalene

Naph

8.46

128, 115

0.14

Acenaphthylene

Aceny

13.00

152, 126

0.22

Acenaphthene

Acene

13.26

154, 126

0.18

Flourene

Flu

14.49

166, 139

0.19

Phenanthrene

Phe

17.14

178, 152

3.71

Anthracene

Anth

17.22

178, 152

0.60

Flouranthene

Fla

20.16

202, 174

0.15

Pyrene

Pyr

20.49

202, 174

2.69

Benz(a)anthracene

BaA

23.55

228, 200

1.20

Chrysene

Chr

24.00

228, 202

0.77

Benzo(e)pyrene

BeP

25.05

252, 125

1.25

Benzo(b)flouranthene

BbF

26.30

252, 224

0.44

Benzo(k)fluoranthene

BkF

26.35

252, 224

0.44

Benzo(a)pyrene

BaP

27.18

252, 225

1.22

Perylene

Per

28.06

252, 126

0.34

Benzo(ghi)perylene

BghiP

30.06

276, 248

7.20

Dibenz(a,h)anthracene

DBA

30.17

278, 248

1.94

Indeno(1,2,3cd)pyrene

IcdP

30.55

276, 248

0.82