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无火焰原子吸收法直接用于测定天然水中含量在ppb 级以下的重金属往往有困难。一般要进行预浓缩。反相萃取色谱法是五十年代末期发展起来的对无机物质分离富集的技术。目前已广泛用于碱和碱土金属、稀土元素等的分离和富集。本文对利用该法富集天然水中重金属进行了探讨。将铜试剂和8-羟基喹啉溶于氯仿中作混合固定相,聚四氟乙烯(701)担体作载体制备色谱柱,以4%HCl作淋洗液,石墨炉原子吸收法测定天然水中超痕量的 Cu、Pb、Cd、Co、Ni、
Non-flame atomic absorption spectrometry directly used to determine the content of natural water ppb level below the heavy metals are often difficult. Preconcentration is generally required. RP-HPLC is a technique developed for the separation and enrichment of inorganic substances developed in the late 1950s. Has been widely used in alkali and alkaline earth metals, rare earth elements such as the separation and enrichment. This article discusses the use of this method enrichment of heavy metals in natural water. The copper reagent and 8-hydroxyquinoline were dissolved in chloroform as a stationary phase. Polytetrafluoroethylene (701) carrier was used as a carrier to prepare a chromatographic column. 4% HCl was used as the eluent and graphite furnace atomic absorption spectrometry Trace amounts of Cu, Pb, Cd, Co, Ni,