Description
Detection principle
β-galactosidase activated by sodium ions can catalyze o-nitrophenol to produce glycoside and o-nitrophenol. The increase of absorbance is determined at 405 nm, and the content of sodium ion is calculated indirectly.
Performance characteristics
| Sample type | serum, plasma |
| Sensitivity | 0.02 mmol/L |
| Detection range | 0.02 – 20 mmol/L |
| Detection method | Colorimetric method |
| Assay type | Quantitative |
| Assay time | 15 min |
| Precision | Average inter-assay CV: 8.4%Average intra-assay CV: 2.2% |
| Storage | 2-8℃ |
| Valid period | 6 months |
