三硝基甲苯(TNT)是炸药生产、加工工业废水中常见的有毒、有害物质。一旦污染了水源水将对人、畜、鱼类造成危害。水中三硝基甲苯的监测方法目前国内有氯化十六烧基吡啶分先光度法,气、液相色谱法。气相色谱法灵敏快速、准确。本文就气相色谱法测定三硝基甲苯的最佳实验条件进行了探讨,并对方法的最低检出浓度、精密度、回收率及样品在各种条件下的稳定性等做了大量的实验,结果令人满意。 Trinitrotoluene (TNT) is a kind of poisonous and harmful substance commonly found in explosives production and processing industrial wastewater. Once polluted water will cause harm to people, livestock and fish. Trinitrotoluene monitoring method in water Currently there are sixteen pyrithione chloride spectrophotometry, gas, liquid chromatography. Gas chromatography sensitive fast and accurate. In this paper, the best experimental conditions for the determination of trinitrotoluene by gas chromatography were discussed, and a great deal of experiments were done on the minimum detectable concentration, the precision, the recovery rate and the stability of samples under various conditions. The result is satisfactory.