采用冷聚焦-GC-MS联用测定1μmol/mol的57种臭氧前体物混合气体标准样品,在保证各组分能够实现良好分离效果的前提下,对相关分析条件进行了优化以实现样品分析测定的重复性最佳,该方法可准确测定其中的54种组分,在最优条件下6次重复测定的RSD在0~2.5%之间,结果表明该方法准确、可靠,可为相关气体标准样品的研制提供技术支持。 Using cold-focus-GC-MS combined with 1 μmol / mol of 57 ozone precursor mixed gas standard samples, under the premise of ensuring that each component can achieve good separation effect, the relevant analysis conditions were optimized for sample analysis The repeatability of the method is the best. The method can accurately determine 54 of these components. Under the optimal conditions, the RSD of 6 replicates is between 0 and 2.5%. The results show that the method is accurate and reliable, The development of standard samples to provide technical support.