Abstract

Platinum and palladium uptake by vegetation was reported earlier. Initially, the spectrophotometric method applied to the analysis of Pd in plant ash was affected by errors typical of values near the limit of determination. No appropriate method for Pt was available for these low values. A method published earlier for metallic alloys and ores, which is based on a double extraction of an iodide chelate of Pt and Pd from unfiltered digests into MIBK, was adapted, with some modifications, to ashed vegetation. These modifications consisted of a single extraction; the addition of benzene to the MIBK, to promote a better phase separation; and the use of a smaller volume ratio of solvent to water, to increase the sensitivity of the method. Quantitation was with a graphite furnace analyzer (GFA).

Detection of trace amounts of Cr by two laser-based spectroscopic techniques: laser-enhanced ionization in flames and laser-induced fluorescence in graphite furnace

Ove Axner and Halina Rubinsztein-Dunlop
Appl. Opt. 32(6) 867-884 (1993)

Fluorescence sensing techniques for vegetation assessment

Lawrence A. Corp, Elizabeth M. Middleton, James E. McMurtrey, Petya K. Entcheva Campbell, and L. Maryn Butcher
Appl. Opt. 45(5) 1023-1033 (2006)

A Graphite Resistor Source for Image Furnace Research

E. E. Maust and W. E. Warnke
Appl. Opt. 2(7) 758-759 (1963)

Nonlinear optical properties of Rh–Pd and Rh–Pt solid-solution alloy nanoparticles prepared by a laser-induced nucleation method in aqueous solution

Md. Samiul Islam Sarker, Takahiro Nakamura, Ali Hossain, Yuichi Kozawa, and Shunichi Sato
OSA Continuum 2(10) 2891-2900 (2019)

Note on the Production of Fluorite in the Electric Furnace

Donald C. Stockbarger
J. Opt. Soc. Am. 14(5) 448-448 (1927)