基于Hg~(2+)与聚烯丙基胺之间存在相互作用,以滤纸为基质,以聚烯丙基胺盐酸盐为原料制成了Hg(Ⅱ)选择性吸附试纸。用该试纸结合分光光度法测定试样溶液中Hg~(2+)含量,线性范围为0.1~50μmol/L,检测限为0.07μmol/L。测定30μmol/L Hg~(2+)试样溶液作重复性考察,7次测定相对标准偏差不超过3.5%。用本方法测定含Hg~(2+)试样,所得结果与冷原子吸收法没有明显差异。 Based on the interaction between Hg 2+ and polyallylamine, Hg (Ⅱ) selective adsorption paper was prepared from polyallylamine hydrochloride using filter paper as substrate. The content of Hg 2+ in the sample solution was determined by the combination of the test strip and the spectrophotometer. The linear range was 0.1-50 μmol / L and the limit of detection was 0.07 μmol / L. Determination of 30μmol / L Hg ~ (2+) sample solution for repeated inspection, 7 times the determination of relative standard deviation does not exceed 3.5%. The Hg 2+ -containing sample was determined by this method and the results were not significantly different from those of the cold atomic absorption spectrometry.