Takahashi, Kazunobu published the artcileDetermination of release rate of pyridine-triphenylborane (PTPB) from copper-free antifouling paints, COA of Formula: C23H20BN, the publication is Shikizai Kyokaishi (2005), 78(2), 50-57, database is CAplus.
Pyridine-triphenylborane (PTPB) is one of the alternative tin-free antifoulants in marine antifouling paints and was used widely in com. copper-free self-polishing antifouling paints in Japan. Anal. method for determination of PTPB at low ppb level in seawater was developed by HPLC with UV detection at 220 nm after pre-concentration with C18 solid-phase extraction (SPE). PTPB leached from an antifouling paint film was extracted from artificial seawater using a C18 solid-phase extraction (SPE) cartridge, and eluted with acetonitrile/pyridine (99:1). The recoveries of PTPB (25 μg/1 and 50 μg/l) spiked into artificial seawater were 96% and 97%, resp. The limit of determination of PTPB using 100 mL of artificial seawater was 0.5 μg/l for this anal. method. The HPLC-UV using SPE was applied onto measurement of the release rate (μg/cm2/day) of PTPB from copper-free antifouling paints containing PTPB according to both ISO 15181-1 and 15181-2.
Shikizai Kyokaishi published new progress about 971-66-4. 971-66-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is Triphenyl(pyridin-1-ium-1-yl)borate, and the molecular formula is C6H12N2O, COA of Formula: C23H20BN.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem