Optimisation of sample pre-treatment method for the determination of triclosan in marine sediments by high-performance liquid chromatography and marine benthic quality assessment in the southern Baltic Sea

Marta Kobusińska , Maria Witt , Leszek Łęczyński , Elżbieta Niemirycz


This study comprises optimisation of sample preparation and HPLC analytical procedure for the determination of a personal care product ingredient, triclosan (TCS), in marine sediments. The testing of several varying pre-treatment parameters confirmed that ultrasonic extraction is an effective method for the isolation of TCS from marine sediments, and that the choice of extraction solvent appeared to be of major importance. The selection of the mobile-phase composition and the absorption wavelength was made for the high-performance liquid chromatography analysis step. Based on the validated method, a preliminary assessment of the benthic ecosystem quality with regards to TCS contamination has been demonstrated in the southern Baltic Sea – a semi-enclosed sea, characterised by poor water exchange, thus particularly susceptible to anthropopression. TCS has been identified and quantified in situ in marine bottom sediments, sediment dwelling isopod – Saduria entomon L. and estimated in silico in pore waters based on the equilibrium partition theory in order to assess the potential exposure and uptake from the aqueous phase. TCS concentrations identified in the bottom sediments of the Gdansk Basin, as the natural habitat for studied S.entomon L., appear to be threatening to the benthic environment. Particularly when considering S. entomon L. as a major nutrition source for cod (Gadus morhua) undergoing the feminisation process, since the recent studies prove TCS to have a potential to induce critical alterations in the endocrine system of marine ichthyofauna.
Author Marta Kobusińska (FOG / IO / DMChEP)
Marta Kobusińska,,
- Division of Marine Chemistry and Environmental Protection
, Maria Witt (FOG / IO / DMChEP)
Maria Witt,,
- Division of Marine Chemistry and Environmental Protection
, Leszek Łęczyński (FOG / IO / DMG)
Leszek Łęczyński,,
- Division of Marine Geology
, Elżbieta Niemirycz (FOG / IO / DMChEP)
Elżbieta Niemirycz,,
- Division of Marine Chemistry and Environmental Protection
Journal seriesInternational Journal of Environmental Analytical Chemistry, ISSN 0306-7319, (A 20 pkt)
Issue year2018
Publication size in sheets1.15
Keywords in EnglishDioxin precursors, pharmaceuticals and personal care products (PPCPs), analytical method, marine sediments, Saduria entomon L., equilibrium partition theory, environmental hazard
ASJC Classification2307 Health, Toxicology and Mutagenesis; 2739 Public Health, Environmental and Occupational Health; 2310 Pollution; 1111 Soil Science; 2311 Waste Management and Disposal; 2312 Water Science and Technology; 2304 Environmental Chemistry; 1602 Analytical Chemistry
Languageen angielski
Score (nominal)20
ScoreMinisterial score = 20.0, 30-09-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.489; WoS Impact Factor: 2017 = 1.372 (2) - 2017=1.192 (5)
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