1. US EPA (1979) Methods for Chemical Analysis of Water and Wastes, EPA600/14-79/020, US Environmental Protection Agency, Washington, DC, USA.
2. WRCB (1988) Leaking Underground Fuel Tank (LUFT) Field Manual, State Water Resources Control Board, Sacramento, CA, USA.
3. ASTM (2005) Annual Book of ASTM Standards, Volume 11.02, ASTM, West Conshohocken, PA, USA.
4. Camel V, Tambuté A, Caude M (1993) J Chromatogr 642:263.
5. Liang S, Tilotta DC (1998) Anal Chem 70:616.