离子色谱法测定矿泉水中溴酸根  

ION CHROMATOGRAPHIC (IC) DETERMINATION OF BROMATE ION IN MINERAL WATER

作　　者：崔丽英[1] 叶新强[1] 赵振平[1] 

机构地区：[1]济南市环境保护科研所,济南250014

出　　处：《理化检验（化学分册）》2004年第4期215-216,共2页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：臭氧消毒矿泉水中易产生副产物BrO-3,采用加入AgNO3沉淀Cl-的方法消除干扰,以1.7mmol·L-1NaHCO3和1.8mmol·L-1Na2CO3的混合液为淋洗液,利用Dionex 100型离子色谱仪,AS12A阴离子交换色谱法,对济南地区水源臭氧消毒矿泉水进行了分析,检测出了BrO-3,方法准确、可靠、易行。IC was applied to the determination of bromate in mineral water. The interference of chloride ion was eliminated by the addition of an appropraite amount of AgNO_3 solution. DX-100 Ion-chromatograph was used for the analysis, using AS12A as separation column. A mixed solution composing of 1.7mmol·L^(-1) Na_2HCO_3 and 1.8mmol·L^(-1) Na_2CO_3 was used as eluant at a flow-rate of 1.0ml·min^(-1). Sampling volume of 25μl was used, and conductometric detection was used in the final determination. RSD′s (n=6) obtained was 1.0% and recoveries were in the range 95.5%～102.0%.

关 键 词：臭氧消毒矿泉水 溴酸根 离子色谱法 含量测定 

分 类 号：TU991.21[建筑科学—市政工程]