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环境化学  2015 

离子色谱-质谱联用测定瓶装水中的高氯酸盐和溴酸盐

Keywords: 高氯酸盐,溴酸盐,离子色谱-串联质谱,瓶装水

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Abstract:

以高容量、强亲水性的IonPacAS20(2mm)为分析柱,ESI-MS-MS串联质谱为检测器,同时测定瓶装水中的高氯酸盐和溴酸盐.该方法对高氯酸盐和溴酸盐的检出限(S/N=3)分别为0.01μg·l-1和0.1μg·l-1,线性相关系数分别是r=0.9990(0.05—100μg·l-1)和r=0.9998(0.5—100μg·l-1).对某样品连续进样7次,高氯酸盐和溴酸盐的相对标准偏差(RSD)分别为1.2%和0.9%.运用该方法测定瓶装水,并加标回收,高氯酸盐和溴酸盐的加标回收率分别在101.0%—116.5%之间和87.5%—118.9%之间.

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