| RPIPP | reverse phase ion-pair partition |
|---|---|
| RPLC | reverse phase liquid chromatography |
| SLP | left sacroposterior [fetal position] [Lat. sacrolaeva posterior]; segmental limb systolic pressure; ... |
| SPF | skin protection factor; specific-pathogen free; spectrophotofluorometer; S-phase fraction; split pro... |
| TE | exhalation time; expiratory phase time |