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doi: 10.1037 [DOI] [PubMed] [Google Scholar] 44.Kirsch I

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"Degradable or not

As interpreted by FDA in guidance, the phrase harmful and potentially harmful constituents (HPHCs) refers to any chemical or chemical compound in a tobacco product or in tobacco smoke that is, or potentially is, inhaled, ingested, or absorbed into the body, including as an aerosol (vapor) or any other emission

The reference substances were 1-aminonaphthalene, 2-aminonaphthalene, 3-aminobiphenyl, and 4-aminobiphenyl (Sigma Aldrich, USA) and the internal standards were 2-aminonaphthalene-d7 and 4-aminobiphenyl-d9 (CDN Isotopes, Canada) to analyze the content of aromatic amines