title: HPLC Coupled with in-line photolysis, hydride generation and flame atomic-absorption spectrometry for the speciation of tin in natural waters.
abstract: The use of an in-line photolysis coil in a continuous-flow system of high-performance liquid chromatography coupled with hydride generation and flame atomic-absorption spectrometry for the speciation of tin in natural waters is described. Irradiation with ultraviolet light is shown to convert tributyltin into organic tin(IV), from which a volatile hydride can be produced in the conventional way. The effect of various conditions on the analytical performance is discussed. A detection limit of 2 ng for tin was obtained, and the tin species could be completely separated within 6 min. Use of the technique for quantification of tributyltin compounds in local coastal waters is described.
authors.affiliation: Plymouth Analytical Chemistry Research Unit, Department of Environmental Sciences, Polytechnic South West, Drake Circus, Plymouth, Devon PL4 8AA, England.
authors.forename: L
authors.initials: L
authors.lastname: Ebdon
authors.forename: S J
authors.initials: SJ
authors.lastname: Hill
authors.forename: P
authors.initials: P
authors.lastname: Jones