Methods
The following analytes are routinely analyzed in biological samples:
| Analyte | Instrument | Method Reference |
|---|---|---|
| Metals | ICP-MS | EPA Method 6020 |
| PCB Aroclors | GC-ECD | EPA Method 8082 |
| PCB Congeners | HR-GC-MS | EPA Method 1668, 1668A |
| Organochlorine Pesticides | GC-ECD | EPA Method 8081 |
| PAHs | GC-MS-SIM | EPA Method 8270 |
| SVOAs/BNAs | GC-MS | EPA Method 8270 |
| Dioxins/Furans | HR-GC-MS | EPA Method 1613, 8290 |
| PBDEs | HR-GC-MS | EPA Method 1614 |
| Lipids (fat content) | In House SOP | |
| Percent Moisture | In House SOP |
Organic Analysis:
Unlike soils which can effectively be extracted by ultrasonic disruption of a soil/solvent mixture, tissues require a more exhaustive, soxhlet extraction.
Analysis of samples is done according to En Chem's Standard Operating Procedures (SOP), derived from EPA methods such as:
- Volatile Organics by Modified 8260
- Semi-Volatile Organics by Modified 8270
- Pesticides by 8081
- PCBs by 8082
- PAHs by GC/MS-SIM
Inorganic Analysis:
Tissue samples may require metals analysis by:
- Inductively Coupled Plasma Mass Spectrometry (ICPMS)
- Cold Vapor Atomic Absorption (CVAA)