Simple, Fast, and Sensitive Method for Quantification of Tellurite in Culture Media

Abstract
A fast, simple, and reliable chemical method for tellurite quantification is described. The procedure is based on the NaBH 4 -mediated reduction of TeO 3 2− followed by the spectrophotometric determination of elemental tellurium in solution. The method is highly reproducible, is stable at different pH values, and exhibits linearity over a broad range of tellurite concentrations.