采用自制的SPE-Ag柱去除样品中高浓度的氯离子,再用H柱去除可能带进系统的银离子,从而消除对溴酸盐测定的影响。基于此建立了测定饮用天然矿泉水中痕量溴酸盐的离子色谱方法。其最小检出浓度为0.005 mg/L,相对标准偏差为3.7%,回收率在100%～112%之间。 Self-made SPE-Ag columns remove high concentrations of chloride from the sample and use H columns to remove any silver ions that may be introduced into the system, eliminating the effects of bromate measurements. Based on this, an ion chromatography method for the determination of trace bromate in drinking natural mineral water was established. The minimum detectable concentration was 0.005 mg / L, the relative standard deviation was 3.7% and the recovery was between 100% and 112%.