用内装1％NaHSO_4溶液的多孔玻板吸收管以0.5L/min流速采集室内空气。样品经碱化后,用庚烷提取。采用气相色谱祛,火焰离子化检测器测定样品中尼古丁的含量。采样效率为93.6％,加标回收率为89.3％～105.6％(x=98.4％)。变异系数为1.7％～4.1％。在本法的采样条件下,检出下限为0.01μg/m~3。对样品的提取效率和稳定性进行了讨论,采集在吸收液中的样品于冰箱中储存可稳定7天。现场采样结果表明,本法简便快速,灵敏可靠,适用于室内空气中尼古丁的采样和测定。 Indoor air was collected at a flow rate of 0.5 L / min using a perforated glass pipet containing 1% NaHSO 4 solution. The sample is alkalized and extracted with heptane. Determination of nicotine in samples by gas chromatography and flame ionization detector. The sampling efficiency was 93.6% and the spiked recoveries ranged from 89.3% to 105.6% (x = 98.4%). The coefficient of variation is 1.7% ~ 4.1%. Under this sampling method, the lower limit of detection is 0.01μg / m ~ 3. The extraction efficiency and stability of the samples were discussed, and the samples collected in the absorption solution were stored in the refrigerator for 7 days. The field sampling results show that this method is simple, rapid and sensitive, suitable for sampling and determination of nicotine in indoor air.