TY - GEN AU - Krogh,M AU - Johansen,K AU - Tønnesen,F AU - Rasmussen,K E TI - Solid-phase microextraction for the determination of the free concentration of valproic acid in human plasma by capillary gas chromatography SN - 1572-6495 PY - 1996///0603 KW - Chromatography KW - methods KW - Dialysis KW - Humans KW - Hydrogen-Ion Concentration KW - Microchemistry KW - Reproducibility of Results KW - Valproic Acid KW - blood N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/0378-4347(95)00273-8 ER -