TY - RPRT TI - Polycyclic aromatic hydrocarbon purification procedures for compound specific isotope analysis. AU - Moonkoo Kim AU - Mahlon C Kennicutt AU - Yaorong Qian PY - 2005 DO - 10.1021/es050577m UR - https://pubmed.ncbi.nlm.nih.gov/16190238/ ID - 16190238 ER -