Filter | Virus | % Virus adsorption | |||
---|---|---|---|---|---|

Buffer | Buffer containing 0.1 M NaCl | Buffer containing 0.1 M MgCl_{2} | Buffer containing 0.1 M AlCl_{3} | ||

Millipore HA | MS2 | >99 A^{b}
| >99 A | >99 A | >99 A |

φX174 | 98 A | >99 A | >99 A | >99 A | |

Poliovirus 1 | >99 A | >99 A | >99 A | >99 A | |

Mean | >99 | >99 | >99 | >99 | |

Filtrite | MS2 | >99 A | 98 AB | >99 A | 96 B |

φX174 | 95 A | 97 A | 98 A | 23 B | |

Poliovirus 1 | 99 A | >99 A | 97 A | 10 B | |

Mean | 98 | 98 | 98 | 43 | |

Whatman | MS2 | 3 A | 4 A | 3 A | 4 A |

φX174 | 6 A | 2 A | 2 A | 4 A | |

Poliovirus 1 | 9 A | 7 A | 5 A | 7 A | |

Mean | 6 | 4 | 3 | 5 | |

1MDS | MS2 | 95 A | 60 B | 44 C | 5 D |

φX174 | 85 A | 75 B | 73 B | 10 C | |

Poliovirus 1 | 99 A | 95 A | 93 A | 10 B | |

Mean | 93 | 76 | 70 | 14 |

↵a We added approximately 10

^{5}PFU of virus to 25-ml portions of buffer, buffer containing 0.1 M NaCl, buffer containing 0.1 M MgCl_{2}, and buffer containing 0.1 M AlCl_{3}, and each type of solution was passed through the different types of filters at a rate of 1.5 ml/s. The numbers of viruses in the influent and effluent were measured in order to determine the percentage of adsorption in each case.↵b Values on the same line followed by the same letter are not significantly different at P = 0.05.