TY - JOUR AU - Michele Schantz AU - Reenie Parris AU - Stephen Wise C2 - Chemosphere DA - 1993-11-01 LA - en M1 - 27 PB - Chemosphere PY - 1993 TI - NIST Standard Reference Materials (SRMs) for Polychlorinated Biphenyl (PCB) Determinations and Their Applicability to Toxaphene Measurements ER -