University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Additive

Classification: Polymer -> rubber -> additive

Citations 1

"Determination Of Tellurium By Gas Phase Molecular-absorption Spectrometry After Hydrogen Telluride Generation"
Anal. Lett. 1995 Volume 28, Issue 1 Pages 121-146
Sanz Asensio, J.;Galban Bernal, J.;Gonzalez, F.G.;Benito Grande, J.

Abstract: Sample (1 ml) and 0.35 mL NaBH4 (30 g/l) were placed inside a generation flask, N2 was introduced to remove the air and the reference measurement was made whilst N2 was passing through the flow cell. After 2 min, 2 mL 2 M HCl was injected. Both hydrogen telluride and hydrogen were generated and carried by N2. The hydrogen telluride was transported to a flow cell placed in a UV-visible molecular absorption spectrophotometer. The absorption spectra was measured from 190-300 nm. The conditions were optimized based on height and area of absorbance vs. time profile of hydrogen telluride generated. The calibration graph was linear from 5-100 g/ml Ti. Detection limits were 1.1 and 3.1 g/ml of Te(IV) and Te(VI), respectively. RSD were 3-7%. The method was applied to additives used in synthetic rubber.
Tellurium Spectrophotometry Gas phase detection Volatile generation Volatile generation