TABLE 1.
Summary of the IPR tests for Cryptosporidium and Giardia with different methods and spike suspensions
| Method | Protozoan | Spike suspension dataa
|
|||
|---|---|---|---|---|---|
| ColorSeedb
|
WSLHc
|
||||
| Mean Recovery (% [n = 4]) | Precision (RSD)a | Mean recovery (% [n = 4]) | Precision (RSD) | ||
| ICR (yarn-wound polypropylene filter) | Cryptosporidium | 4 | 200 | 13 | 138 |
| Giardia | 10 | 150 | 5 | 180 | |
| Method 1623 (Envirochek HV) | Cryptosporidium | 57 | 40 | 45 | 39 |
| Giardia | 37 | 40 | 57 | 33 | |
| Method 1623 (Envirochek) | Cryptosporidium | 62 | 38 | 58 | 40 |
| Giardia | 45 | 41 | 49 | 39 | |
a
Spike suspensions.
b
Biotechnology Frontiers (North Ryde, Australia) Cryptosporidium count = 98 ± 1.5; Giardia count = 98 ± 1.5.
c
WSLH Flow Cytometry Unit Cryptosporidium count = 198 ± 2.30; Giardia count = 201 ± 3.83.