Automated precolumn concentration and high-performance liquid chromatographic analysis of polynuclear aromatic hydrocarbons in water using a single pump and a single valve

Determination of Polycyclic Aromatic Hydrocarbons in Water by Solid-Phase Microextraction and Liquid Chromatography

“…The technique of efficient separation has been described in several papers. 21,22 This paper explores the potential of the SPME-HPLC-FLD method for determining the concentration of PAHs in aqueous environments, since SPME was developed as an effective pretreatment method to extract five PAHs from water. In this report, the SPME parameters and optimum conditions for HPLC/FLD analysis of water phase PAHs are discussed in detail.…”

Measurement of a Time-Weighted Average Concentration of Polycyclic Aromatic Hydrocarbons in Aquatic Environment Using Solid Phase Extraction Cartridges and a Portable Pump

“…All TWAs of 4 PAHs measured here were lower than 10 ng/L and the data were agreeable to the published one that was performed by the Environmental Protection Agency of Japan in 1993 (Environment Agency, 1994): the agency reported "not detected or less than 10 ng/L", however the survey monitored PAH levels by a "spotsampling" at a time. Previously reported solid phase extraction-HPLC analysis methods (Lai and White, 1995;Fladung, 1995) use small amount of water sample. These methods could monitor the level of PAHs for a designated interval with automated equipments, including adsorption, extraction and HPLC analysis procedure.…”