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文章建立了固相萃取(SPE)法-GC-NCI-MS/MS测定水中的8种硝基多环芳烃(Nitro-PAHs)的分析方法。采用固相萃取法对水样进行前处理,二氯甲烷解吸,氮气吹干后甲醇复溶进GC-MS/MS分析,采用MRM模式,有效降低基质干扰,在0.1-10μg/L的浓度范围内,8种硝基多环芳烃的线性相关系数均在0.99%以上,加标(0.5μg/L、2μg/L、5μg/L)回收率在74.2%-93.4%之间,8种硝基多环芳烃的检出限均在0.08μg/L以下,可满足水中硝基多环芳烃的检测要求。
A method for the determination of eight nitroaromatic hydrocarbons (PAHs) in water by GC-NCI-MS / MS was developed. The samples were pre-treated by solid phase extraction (SPE), and the methanol was desorbed and desiccated by nitrogen into GC-MS / MS. The MRM mode was used to reduce matrix interference. The concentration range of 0.1-10μg / L The linear correlation coefficients of eight nitroaromatic hydrocarbons were above 0.99%. The recoveries of spiked (0.5μg / L, 2μg / L, 5μg / L) ranged from 74.2% to 93.4% The detection limits of polycyclic aromatic hydrocarbons are below 0.08μg / L, which can meet the detection requirements of nitro-PAHs in water.