| Enumerations for _Chem_shift_ref.External_ref_loc (An open enumeration) | |
|---|---|
| insert at center of a separate sample tube | enumeration_text |
| insert at center of experimental sample tube | enumeration_text |
| insert at outer edge of a separate sample tube | enumeration_text |
| insert at outer edge of experimental sample tube | enumeration_text |
| other | enumeration_text |
| separate tube (no insert) not similar to the experimental sample tube | enumeration_text |
| separate tube (no insert) similar to the experimental sample tube | enumeration_text |