1. US Environmental Protection Agency, Contract Laboratory Program, Statement of Work for Organics Analysis Multi-Media Multi-Concentration, Document Number OLM01.0, including revisions to OLM01.9, July 1993.
2. US Environmental Protection Agency, Office of Water Regulations and Standards, Method 1625: Semivolatile Organic Compounds by Isotope Dilution GCMS, June 1989.
3. Hazardous organic compound analysis
4. Pentobarbital Found in Ground Water
5. Application of gas chromatographic retention properties to the identification of environmental contaminants