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Poster Presentations
Day 4, June 25（Wed.）
Room P (Maesato East, Foyer, Ocean Wing)
- 4P-PM-30
Determination of Antifouling Booster Biocides in Seawater using Semi-automatic Solid-Phase Extraction (SPE) System and High-performance Liquid Chromatography-Tandem Mass Spectrometry
(NPUST)
oTzu Wang, Te Kung
Antifouling booster biocides, such as Irgarol 1051, Diuron, and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT), are primarily used in coatings to prevent the adhesion of marine organisms. Fishing ports, docks, and shipyards are considered major sources of these harmful substances, as the biocides gradually leach into the aquatic environment, leading to contamination and potential ecological impacts. In this study, a semi-automatic solid-phase extraction (SPE) system combined with high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was employed to analyze antifouling booster biocides in seawater. Seawater samples were collected from several fishing ports in southern Taiwan between August 2024 and May 2025. The developed method was validated and demonstrated high performance in terms of accuracy, precision, and sensitivity. The semi-automatic SPE system offers several advantages, including standardization, improved efficiency, reduced contamination, and enhanced sensitivity in sample pretreatment. Additionally, this study investigated the distribution of antifouling booster biocides in key fishing ports across Taiwan. The findings provide a scientific basis for marine environmental management programs and serve as a valuable reference for legislative bodies in Taiwan.