Silva Junior, Ranulfo C. [UNESP]Kushikawa, Ricardo T. [UNESP]Gomes, Homero M. [UNESP]Teixeira, Marcos F. S. [UNESP]2015-03-182015-03-182014-01-01International Journal Of Environmental Analytical Chemistry. Abingdon: Taylor & Francis Ltd, v. 94, n. 9, p. 874-883, 2014.0306-7319http://hdl.handle.net/11449/116944An analytical method was developed for quantification of the fungicide thiram (tetramethylthiuram disulfide), based on its capacity to complex Cu2+ ions. A solid-phase reactor (SPR) was coupled in a flow system containing a spectrophotometer as detector. The SPR consisted of a tube filled with finely ground resin, in which copper(II) phosphate was immobilised prior to polymerisation. Contact of thiram with the Cu2+ ions immobilised in the resin resulted in the formation of a strongly coloured Cu2+/thiram complex. Maximum absorbance of the Cu2+/thiram complex was obtained at a wavelength of 439 nm. The usefulness of the methodology has been evidenced by the determination of thiram residues in corn and bean grains. Previously, a variety of transition metal cations which would form coloured complexes with tetramethylthiuram disulfide were tested.874-883engflow injection analysisspectrophotometrysolid-phase reactorthiramthiuram disulfideDetermination of tetramethylthiuram disulfide (thiram) for residual analysis in food using spectrophotometry coupled with a solid-phase reactor (SPR) in a flow systemArtigo10.1080/03067319.2014.914183WOS:000340248000003Acesso restrito