Identification and removal of amine, cyanide and aldehyde compounds in cigarette smoke via extracted plantʹʹs micro silica by gas chromatography – mass spectroscopy (GCMS) method

Silica is a compound found in some plants and one of the most important materials in chemical industrial and adsorption processes. In this study, micro silica was extracted from Equisetum arvense in North of Iran and purified from Equisetum arvense plant ash in an electric furnace at 1300°C for 4 hours. SEM measurements determined a particle size of micro silica of 1-1.5 micrometer. The cigarettes used in this study were prepared by adding 5 mg micro silica to each filter tip of the commercial cigarettes. The cigarettes were smoked by machine under standard ISO conditions. The absorbed compounds were extracted by pure methanol and analyzed by GC/MS, using NIST and WILLY229 libraries for identification. Results showed high absorption of amines, nitrosamines, carbamaldehyde, formamide, cyanonitrile and their derivatives. The highest adsorption was found for the following substances: N,N-dimehyl formamide, 4-piperidin-1-yl-oxazolidin-2-one, N-6-dimethylmalonyl-2-methylpiperidine-1-carbaldehyde, ethylhydrazine oxalate, methylfluoroacetonitrile, ethanediimideic acid dihydrazide, Pyrrole, 2-(hydroxyimino)ethyl acetate, N-acetyl-N-(acetyloxy) acetamide, methyl phenidate, 2-piperidineneacetic acid, ?,?,-phenylmethyl ester, 1-[2-(1,3-cyclopentadien-1-yl)ethyl]pyrolidine, nicotine, N-(1-hydroxy-4-oxo-1-phenylperhydroquinolizine-3-yl) carbamic acid benzyl ester, hydrazoic acid, 1-epislaframine, 2-allyl-3,5-dimethylpyrazine, 1-benzoyl-1h-napht[2,3-d]imidazole-6,7-di carboxylic anhydride, propionic amide, ammonium carbamate, L- ? -alanine, acetaldehyde, 2-cyanoaziridine, 8-azidoadenosine, tertadecylaldehyde, 1-cyano-1-thioethyl(1/-ethoxy)cyclopentane, nitrosotrimethyleneimine, 4-cyano-4-thioethyl(1/-ethoxy)hepta-1,6-diene, formaldehyde oxime trimer, nitrosomethan amine, 1-(2-methoxy ethyl) hydrazine. This study showed that micro silica due to its acidic structure has the ability to absorb amines, cyanides and aldehydes and their derivatives in cigarette smoke.