TABLE 1.
Characteristics of lab-prepared high-iron-concentration matricies
Dissolved Fe concn (mg/liter) | Turbidity (NTU)a | pH of matrix after SL buffer addition | pH of matrix and EDTA after SL buffer addition |
---|---|---|---|
0 | <1.0 | 7 | 7 |
0.4 | 1 | 7 | 7 |
4 | 4 | 7 | 7 |
40 | 25 | 7 | 7 |
400 | 120 | 5 | 5 |
NTU, nephelometric turbidity units.