GC Determination of Volatile Phenols in Mainstream Smoke of Cigarettes with Purge and Trap Technique

Purge and trap technique was applied in the GC determination of volatile phenols in cigarette smoke.m-cresol and p-cresol in the smoke were successfully separated and accurately determined by the proposed method.Linear relationships between values of peak area and concentration of the 5 phenols determined were kept all in the range of 0.4-200.0 mg·L-1.Detection limits (3S/N) found for the phenols were in the range from 1.8 ng to 4.2 ng per each cigarette.Recovery and precision were tested,giving values of recovery in the range of 97.9%-101.9%,and values of RSD′s (n=6) in the range from 2.04% to 4.52%.