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The labeling efficiency of GA at pH 7, 9, and 11
| pH | Emissions intensity at 400 nm (×104) |
Labeling efficiency (%) |
|
|---|---|---|---|
| Before desalting | After desalting | ||
| 7 | 1.86 ± 0.02 | 1.05 ± 0.02 | 56.5 ± 0.5 |
| 9 | 1.87 ± 0.02 | 1.28 ± 0.01 | 68.4 ± 0.3 |
| 11 | 1.86 ± 0.01 | 1.34 ± 0.01 | 72.0 ± 0.5 |
