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溴化物存在于天然水体中，工业废水和油田含盐水的排放，以及溴代甲烷杀虫剂的使用，均会使水中的溴化物浓度增加。溴化物本身对人体的危害较小，但在饮用水的消毒过程中可与消毒剂反应生成对人体具有“三致”效应的消毒副产物，如溴酸盐、溴代三卤甲烷和溴代卤乙酸等。另外碘代消毒副产物也有相同的副作用，也被证实有一定的致癌性。因此水中的溴化物和碘离子的测定都是非常必要的。该法适用于天然水、饮用水和矿泉水中的溴化物和碘离子的测定。
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Analytical Equipment山INTRODUCTIONThe method allows determination of bromide and iodide ions in natural, potable (incl. bottled), and mineral water using capillary electrophoresis (CE) method.MEASUREMENT METHODMeasurement method is based on sample filtration and its subsequent separation in a fused silica capillary under the influence of the applied electric field. Identification and quantification of bromide and iodide ions is performed by registering their intrinsic absorbance at 200 nm wavelength.MEASUREMENT RANGEMeasurement ranges of the analyzed anions in the samples are: for bromide ions 0.05–100 mg/L,for iodide ions 0.1–100 mg/L.Chloride ions with mass concentration ratio 4000:1 do not influence determination of bromide ions.EQUIPMENT AND REAGENTSThe CAPEL® capillary electrophoresis system is used in measurements. Data acquisition, collection, processing and output are performed using a personal computer running under WINDOWS® XP/7/8 operating system with installed dedicated software package ELFORUN®. All reagents must be of analytical grade or better.EXAMPLE OF A REAL ANALYSISBGE: sulfate, with CTA-OH Capillary: Leff/ Ltot 50/60 cm, ID 75 µm Injection: 600 mbar x secVoltage: – 20 kV Temperature: +20 oC Detection: 200 nm, indirect
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LUMEX INSTRUMENTS (鲁美科思分析仪器)为您提供《天然水、饮用水和废水样品中溴化物、碘离子检测方案(毛细管电泳仪)》，该方案主要用于饮用水中无机阴离子检测，参考标准--，《天然水、饮用水和废水样品中溴化物、碘离子检测方案(毛细管电泳仪)》用到的仪器有LUMEX高效毛细管电泳仪Capel 205、LUMEX石墨炉原子吸收MGA-1000、LUMEX多参数水质分析仪Fluorat、LUMEX在线油膜监测仪CRAB
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