Hejkal T W, Gerba C P, Rao V C
Appl Environ Microbiol. 1982 Mar;43(3):731-3. doi: 10.1128/aem.43.3.731-733.1982.
The reduction of cytotoxicity in virus concentrates from environmental samples was accomplished by high-speed centrifugation and by filtration of the samples through positively charged depth filters.
通过高速离心以及让环境样品通过带正电荷的深层过滤器进行过滤,实现了环境样品中病毒浓缩液细胞毒性的降低。