_Chem_shift_ref.Rank
| Description | The rank of the chemical shift reference. A primary reference is the one used in reporting the data. A secondary reference would be the compound in the sample or used as an external reference. |
| Details: | |
| Parent saveframe | chem_shift_reference |
| Data type | code |
| DB table | Chem_shift_ref |
| DB column | Rank |
| DB type | VARCHAR(15) |
| NULL allowed | yes |