【摘要】 以大孔聚苯乙烯树脂为载体,合成了具缩硫醛大环的螯合树脂。它对Hg²⁺的络合容量可达30—60mgHg²⁺/g树脂,比对Ca²⁺、Zn²⁺、Cd²⁺、Pb²⁺等金属离子的络合容量高数百倍.它能够使因汞中毒而失活的脲酶恢复活力的能力优于巯基树脂及通用阴离子交换树脂。有可能作为口服的高分子解汞毒药物。更多还原

【Abstract】 Chelating resin with macrocyclic mercaptal group supported on maeroporous polystyrene heads was synthesized, which showed good selectivity to Hg2+: its complexing capacity amounted to 30-60 mg Hg3+/g resin, two orders of magnitude greater than for other metal ions such as Ca2+, Zn2+, Ni2+, Pb2+ etc. This resin could restore the activity of urease which had been deactivated by poisoning with Hg2+. Its restoring power was far better than morcapto-resin and common anionic exchange resins. It showed some promise for use as an oral polymeric detoxifying drug for mercury poisoning.更多还原