High-performance liquid chromatographic analysis of preservative-treated timber for 2-(thiocyanomethylthio)benzothiazole and methylene bisthiocyanate
- 1 January 1986
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 111 (6) , 701-705
- https://doi.org/10.1039/an9861100701
Abstract
Preservative-treated timber was quantitatively analysed for 2-(thiocyanomethylthio)benzothiazole and methylene bisthiocyanate by reversed-phase high-performance liquid chromatography on Novapak C18, with UV detection at 280 and 220 nm. The extraction step involved 3 h of Soxhlet extraction or heated ultrasonic agitation of solid blocks in 19 + 81 methanol-acetonitrile azeotrope, for recoveries of 90–100%, dependent on the timber species and preservative carrier. In the absence of any sample clean-up, the RSD was 2–4% in two timber species. The method is suitable for processing large batches of sapwood samples treated with dilute emulsions, organic solvent solutions, or gel diffusion formulations.Keywords
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