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流动注射在线离子交换予浓集已被成功地应用于多种痕量重金属的原子吸收光谱测定流动注射冷原子吸收测定虽也有一些文献报导,但尚未有把在线离子交换予浓集与流动注射冷蒸气原子吸收测汞相结合的报道。本文在前报的基础上,把二者结合起来,建立了痕量汞的在线离子交换予浓集流动注射冷原子吸收测定方法。并应用于天然水、污水、自来水和海水中痕量汞的测定,实现了采样、富集和洗脱等程序的自动化。采样时间为1.5分钟(采样体积为15毫升)时,可得到40倍/分钟的浓集率。采
Flow injection online ion exchange to concentration has been successfully applied to a variety of trace amounts of heavy metals by atomic absorption spectrometry flow injection of cold atomic absorption spectrometry although there are some literature, but not on-line ion exchange to concentration and flow injection cold Vapor atomic absorption mercury combined report. Based on the former reports, this paper combines the two methods and establishes an online ion-exchange method for the determination of trace mercury by flow-injection cold atomic absorption spectrometry. It is also used in the determination of trace mercury in natural water, sewage, tap water and seawater, automating procedures such as sampling, enrichment and elution. Sampling time of 1.5 minutes (sampling volume of 15 ml), you can get 40 times / min concentration. Mining