New analytical application for metal determination in antifouling paints
Artikel i vetenskaplig tidskrift, 2015

Despite the ban of applying TBT coatings on leisure boats in the late 80s, recent studies show an ongoing spread of TBT from leisure boats, particularly during hull cleaning events. Therefore, countries in EU have adopted expensive measures to clean this wash water. A more cost-efficient measure is to focus directly on the source, i.e. identify leisure boats with high concentrations of TBT and prescribe boat owners to remove the paint. We have developed a new antifouling paint application for a handheld X-ray fluorescence (XRF) analyzer to be used for identifying boats with high area concentrations (μg/cm2) of Sn (indication that the hull contains TBT paint residues). Copper and zinc are also included in the application since these metals are used in the vast majority of today's paints. A blind test with up to four layers of TBT-, copper- and zinc-based paints showed good correlation between XRF-measured area concentrations and chemically analyzed concentrations. Future usage of the applications involves identification of boat hulls in particular with high Sn concentrations and also with high Cu and Zn concentrations. This method has the potential to become a useful tool in regulatory management of existence and use of toxic elements on boat hulls.

Metals

XRF

Copper

TBT

Antifouling paints

Zinc

Författare

Erik Ytreberg

Chalmers, Sjöfart och marin teknik, Maritim miljövetenskap

L. Lundgren

Stockholms universitet

M.A. Bighiu

Stockholms universitet

B. Eklund

Stockholms universitet

Talanta

0039-9140 (ISSN)

Vol. 143 121-126

Ämneskategorier

Materialteknik

Marin teknik

DOI

10.1016/j.talanta.2015.05.001

PubMed

26078138