TABLE 2.
Recovery of Cryptosporidium sp. from high-iron-concentration matrices
| Matrix iron concn (mg/liter) | Trial 1 (broad range, iron)
|
Trial 2 (broad range, aged)
|
Trial 3 (EDTA remediation)
|
Trial 4 (narrow range, iron)
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % Recovery | SD (%) | n | % Recovery | SD (%) | n | % Recovery | SD (%) | n | % Recovery | SD (%) | n | |
| 0 | 58.0 | 6.2 | 3 | 58.1 | 2 | 32.7 | 25.6 | 3 | ||||
| 0.4 | 54.7 | 6.3 | 3 | 52.1 | 14.1 | 3 | NDa | ND | ND | |||
| 4 | 51.0 | 3.7 | 3 | 20.6 | 18.1 | 3 | 29.5 | 4.3 | 3 | |||
| 20 | 3.2 | 2.0 | 3 | |||||||||
| 40 | 7.5 | 4.5 | 3 | 5.0 | 5.4 | 3 | 19.1 | 2.9 | 3 | |||
| 50 | 4.3 | 4.6 | 3 | |||||||||
| 100 | 0.2 | 0.2 | 3 | |||||||||
| 200 | 0.0 | 0.0 | 3 | |||||||||
| 300 | 0.0 | 0.0 | 3 | |||||||||
| 400 | 0.0 | 0.0 | 3 | 0.0 | 0.0 | 3 | 0.1 | 1.7 | 3 | |||
a
ND, not determined.