Research Article
Degradation of High-Concentration Nitrate Nitrogen in Groundwater: A Laboratory Study
Table 1
Detection method of test index.
| Serial number | Index | Detection method |
| 1 | pH | Hash electrode method | 2 | ORP | Hash electrode method | 3 | NO3−-N | Ultraviolet spectrophotometry | 4 | NO2−-N | N-(1-naphthyl)-ethylenediamine spectrophotometry | 5 | NH4+-N | Nessler’s reagent spectrophotometry |
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