莱海大学最近的研究开发了一种混合吸附剂材料（聚合物/无机），非常适合从受污染的地下水和地表水中去除痕量浓度的溶解砷。这种新型吸附剂对As（III）和As（V）物种都有很强的选择性，易于高效再生和再利用。杂化材料本质上是一种聚合物阳离子交换器，其中水合亚微米水合氧化铁（HFO）颗粒分散在交换器的凝胶相内。这种材料可以在一个简单的化学热过程中合成，而不需要任何环境管制的化学品。 包括13个参考文献、图表。

Recent works at Lehigh University have led to the development of a hybrid sorbent material (polymeric/inorganic) which is ideally suited for removal of trace concentrations of dissolved arsenic from contaminated groundwater and surface water. The new sorbent is very selective toward both As(III) and As(V) species and amenable to efficient regeneration and reuse. The hybrid material is essentially a polymeric cation exchanger within which hydrated submicron hydrated Fe oxide (HFO) particles are despersed inside the gel phase of the exchanger. The material can be synthesized in a simple chemical-thermal process without requiring any environmentally regulated chemicals. Includes 13 references, figures.