| item | K | Na | Ca | Ba | Li |
| Quantitative detection limit(mmol/L) | 0.004 | 0.004 | 0.025 | 0.044 | 0.01 |
| Quantitative detection limit(μg/ml) | 0.156 | 0.092 | 1 | 6.028 | 0.07 |
| stability % 15S | <3 | <3 | <3 | <3 | <3 |
| Repeatability % | <3 | <3 | <3 | <3 | <3 |
| Linear range ppm | 0-5 | 0-5 | 0-100 | 0-3000 | 0-10 |
| linearly dependent coefficient | 0.999 | 0.999 | 0.999 | 0.999 | 0.999 |