TY - RPRT TI - Automated headspace solid-phase microextraction and in-matrix derivatization for the determination of amphetamine-related drugs in human urine by gas chromatography-mass spectrometry. AU - Akira Namera AU - Mikio Yashiki AU - Tohru Kojima AU - Makoto Ueki PY - 2002 DO - 10.1093/chromsci/40.1.19 UR - https://pubmed.ncbi.nlm.nih.gov/11866382/ ID - 11866382 ER -