Panangala V S, Liu L, Sun G, Worley S D, Mitra A
Department of Pathobiology, Auburn University, AL 36849, USA.
J Virol Methods. 1997 Jul;66(2):263-8. doi: 10.1016/s0166-0934(97)00062-1.
Two new insoluble polymeric materials were evaluated for their efficacies in inactivating rotavirus in flowing water in a biocidal filter application. The two polymers are N-chloro and N-bromo derivatives of a poly-styrene hydantoin prepared from commercial poly-styrene. The studies were conducted for rotavirus in halogen demand-free water at pH 7.0, 25 degrees C and Environmental Protection Agency (EPA) Test Water no. 2 at pH 9.0, 4 degrees C which contained heavy halogen demand. The range of flow rates studied was 0.16-1.22 ml s-1 corresponding to contact times in the range of 4-24 s. Both of the polymers were effective in inactivating rotavirus, the N-bromo derivative providing a 4-6 log reduction under the test conditions. The materials may be useful as supplemental filters for hand-held water purification units.
评估了两种新型不溶性聚合材料在生物杀灭过滤器应用中对流动水中轮状病毒的灭活效果。这两种聚合物是由市售聚苯乙烯制备的聚苯乙烯乙内酰脲的N - 氯和N - 溴衍生物。研究在pH 7.0、25摄氏度的无卤素需求水中以及pH 9.0、4摄氏度的环境保护局（EPA）2号测试水中进行，该测试水含有大量卤素需求。研究的流速范围为0.16 - 1.22毫升/秒，对应接触时间范围为4 - 24秒。两种聚合物都能有效灭活轮状病毒，在测试条件下，N - 溴衍生物可使病毒减少4 - 6个对数级。这些材料可用作手持式水净化装置的补充过滤器。
