Method of Analysis at the U.S. Geological Survey California Water Science Center, Sacramento Laboratory – Determination of Haloacetic Acid Formation Potential, Method Validation, and Quality-Control Practices
Barbara C. Zazzi, Kathryn L. Crepeau, Miranda S. Fram and Brian A. Bergamaschi
Table 10
The mean percent recovery for the nine haloacetic acids in 28 analyses of continuing calibration verification standard level 5.
[µg/L, micrograms per liter; n, number of standards analyzed]
| Analyte name | Concentration (μg/L) | Mean percent recovery (n = 28) | Standard deviation (percent) |
|---|
| Bromochloroacetic acid | 4.0 | 105 | 8 |
|---|
| Bromodichloroacetic acid | 4.0 | 86 | 10 |
|---|
| Dibromochloroacetic acid | 10. | 86 | 9 |
|---|
| Dibromoacetic acid | 2.0 | 97 | 12 |
|---|
| Dichloroacetic acid | 6.0 | 113 | 4 |
|---|
| Monobromoacetic acid | 4.0 | 108 | 8 |
|---|
| Monochloroacetic acid | 6.0 | 113 | 14 |
|---|
| Tribromoacetic acid | 20. | 92 | 16 |
|---|
| Trichloroacetic acid | 2.0 | 95 | 11 |
|---|