| PCB Screening by Perchlorination and GC/ECD | Organochlorine Pesticides and Polychlorinated Biphenyls by GC |
| PCB Screening by Perchlorination and GC/ECD | Organochlorine Pesticides and Polychlorinated Biphenyls by GC |
| Organochlorine Pesticides & PCBs by GC/ECD | Polychlorinated Biphenyls (PCBs) by GC/ECD |
| Organochlorine Pesticides & PCBs by GC/ECD | Polychlorinated Biphenyls (PCBs) by GC/ECD |
| Organochlorine Pesticides by Liquid/Liquid Extraction and GC/ECD | |