建立了一种固相萃取(SPE)-超高效液相色谱(UPLC)-四极杆飞行时间质谱(Q-TOF)测定沉积物中4种氯酚类物质苄氯酚(CP)、二氯酚(DCP)、六氯酚(HCP)、溴氯芬(BCP)的分析方法.样品用1％甲酸丙酮超声提取,强阴离子交换固相萃取柱净化富集,以Waters HSS C18柱(2.1 mm×100 mm,1.8μm)为分离色谱柱,采用0.004％甲酸水(V∶V)-甲醇作为流动相进行梯度洗脱,采用四极杆飞行时间质谱检测.结果表明,六氯酚和溴氯芬在0.2-5.μg· L-1,二氯酚在0.4-20 μg-L-1,苄氯酚在2-100 μg· L-1的范围内线性关系良好,相关系数均大于0.99.在3个加标浓度水平下,回收率为69.5％-99.6％,相对标准偏差为3.4％-14.8％.方法准确灵敏,可满足沉积物中氯酚类物质的测定.
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