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环境化学  2015 

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Keywords: 气相色谱/三重四极质谱联用仪(GC/MS/MS),同位素稀释法,多溴代二噁英/呋喃

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Abstract:

建立了高灵敏度和高选择性的同位素稀释气相色谱/三重四极质谱法测定14种2,3,7,8位溴取代的二英同类物的痕量分析方法.结果表明,14种二英毒性同类物的平均相对响应因子的相对标准偏差均小于20%;校正曲线在0.1—500μg·L-1范围内显示良好线性(R2>0.99).仪器的检出限为0.08—4.00μg·L-1,满足PBDD/Fs的痕量分析需求.为验证方法的适用性,以再生铜冶炼飞灰样品为研究对象,利用所建立的方法测定了14种PBDD/Fs的含量,样品回收率范围在45%—120%之间,表明该方法可用于实际环境样品中PBDD/Fs的定性和定量分析.

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