| Organohalide pesticides/PCBs (Drinking Water) | Organochlorine Pesticides by Liquid/Liquid Extraction and GC/ECD |
| Organohalide pesticides/PCBs (Drinking Water) | Organochlorine Pesticides and Polychlorinated Biphenyls by GC |
| Organohalide pesticides/PCBs (Drinking Water) by GC/ECD | Organochlorine Pesticides and Polychlorinated Biphenyls by GC |
| Chlorinated Pesticides in Water by GC/ECD | Organochlorine Pesticides by GC |
| Chlorinated Pesticides in Water by GC/ECD | Organochlorine Pesticides by GC/ECD |
| Chlorinated Pesticides in Water by GC/ECD | Organochlorine Pesticides by GC/ECD |
| Organochlorine Pesticides & PCBs by GC/ECD | Organochlorine Pesticides by GC/ECD |
| Organochlorine Pesticides & PCBs by GC/ECD | |