Direct Speciation of Tin Compounds in Environmental Samples Using Sn K-edge XANES

Tin K-edge XANES spectra show systematic broadening in the first peak upon increasing the number of organic ligands coordinated to the Sn atom, which can be used to determine Sn speciation in environmental samples. Although the method only provides the average number of organic ligands bound to Sn, a direct method like XANES for Sn speciation can be useful in view of the difficulties associated with chromatographic methods for Sn speciation.