TY  - RPRT
TI  - Solid-phase extraction with strong anion-exchange columns for selective isolation and concentration of urinary organic acids.
AU  - B J Verhaeghe
AU  - M F Lefevere
AU  - A P De Leenheer
PY  - 1988
UR  - https://pubmed.ncbi.nlm.nih.gov/3378323/
ID  - 3378323
ER  -