Table 5.
Eight analytical methods used and their targeted analytes in aerosol
| Analyte(s) | Aerosol collection | Analytical method | No of replicates |
|---|---|---|---|
| Ammonia | Liquid impinger/0.05 M sulphuric acid | Ion chromatography (IC) | 3 |
| Carbon monoxide | Tedlar bag | Non dispersive infrared analyser | 3 |
| Nicotine, total particulate matter (TPM), nicotine-free-dry-particulate-matter (NFDPM), water | Cambridge filter pad | Gas chromatography (GC) with thermal conductivity for nicotine and GC-flame ionisation detection for water | 3 |
| Acetaldehyde, acetone, acrolein, butyraldehyde, crotonaldehyde, formaldehyde, methylethylketone (MEK), propionaldehyde | Liquid impinger/DPNH | Ultraviolet-high performance liquid chromatography (UV-HPLC) | 3 |
| Hydrogen cyanide | Liquid impinger/aqueous sodium hydroxide | Continuous flow analysis | 3 |
| Catechol, cresol (o-, m- & p-), hydroquinone, phenol, resourcinol | Cambridge filter pad | GC/MS | 3 |
| N-nitrosonornicotine (NNN), 4-(N-methylnitroso amino)-1-(3-pyridinyl)-1-butanone (NNK), N-nitrosoanabasine (NAB), N-nitrosoanatabine (NAT) | Cambridge filter pad | Liquid chromatography-Mass spectrometry/Mass spectrometry (LC-MS/MS) | 3 |
| Acrylonitrile, benzene 1,3-butadiene isoprene, toluene | Liquid impinger/chilled methanol, −77°C | Gas chromatography–mass spectrometry (GC-MS) | 3 |