TY - RPRT TI - Application of headspace solid-phase microextraction (HS-SPME) and comprehensive two-dimensional gas chromatography (GC x GC) for the chemical profiling of volatile oils in complex herbal mixtures. AU - Xin Di AU - Robert A Shellie AU - Philip J Marriott AU - Carmen W Huie PY - 2004 DO - 10.1002/jssc.200301642 UR - https://pubmed.ncbi.nlm.nih.gov/15335080/ ID - 15335080 ER -