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研究了三苯膦(TPP)泡沫的制备及其对痕量银的吸附性能。实验表明,这种泡沫由矿酸溶液中吸附银的选择性好、吸附率高。其流程简便,已用于地质样品中痕量银的测定。火焰原子吸收法的测定下限为0.01ppm。并有可能用于金属、合金及纯试剂等样品。
The preparation of triphenylphosphine (TPP) foam and its adsorption of trace silver were studied. Experiments show that the bubble by the mineral acid solution of silver adsorption of good selectivity, high adsorption rate. The process is simple and has been used for the determination of trace silver in geological samples. The lower limit of flame atomic absorption spectrometry is 0.01 ppm. And may be used for metal, alloy and pure reagents and other samples.