Determination of Arsenic, Lead, Cadmium, Chromium, Nickle in Cigarette by Graphite Furnace Atomic Absorption Spectrometry

A method for determining Arsenic (As), Lead (Pb), Cadmium (Cr), Chromium (Cd), Nickle (Ni) in cigarette by graphite furnace atomic absorption spectrometry was developed and 10 cigarette brand samples were analyzed. The results showed that the optimized pyrolysis temperature and atomic temperature for As, Pb, Cr, Cd, Ni were 1 400, 700, 1 300, 600, 1 000 ℃ and 2 100, 1 750, 2 000, 1 300, 2150 ℃, respectively. The recoveries of As, Pb, Cr, Cd, Ni were 97.3%, 98.9%, 101.2%, 100.1% and 102.6% with the RSDS of 4.6%, 3.0%, 3.6%, 2.2% and 3.3%, and the detection limits were 0.147, 0.265, 0.146, 0.026 and 0.172 µg/L, respectively. Content of all the samples were Pb>Cd>Ni>Cr>As and As were between 0.101～0.234 µg/cig, Pb between 1.258～2.108 µg/cig, Cr between 0.129～0.680 µg/cig, Cd between 0.616～2.012 µg/cig and Ni between 0.380～0.801 µg/cig。