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
Website: @unf

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Inorganic compound

Citations 1

"Determination Of Trace Europium In Mixed Rare-earth Oxides By Flow Injection Analysis - Spectrophotometry"
Lihua Jianyan, Huaxue Fence 1991 Volume 27, Issue 2 Pages 75-79
Zhai, Q.;Ren, Y.

Abstract: Sample (0.2 g) was dissolved in water and 5 M HCl befoe dilution with water to 25 mL. A portion (2 ml) of solution was further diluted with water and a portion (50 µL) of the subsequent solution was injected into a stream of 2 M HCl (2.8 mL min-1) into a reduction tube (40 x 2.5 mm) containing Jones reagent. The generated Eu(II) was reacted with 16 µM-methylene blue in a reaction coil and the absorbance of the solution was measured at 664 nm. The coefficient of variation (n = 6) was 1.2%. Beer's law was obeyed for 3 to 25 µg mL-1 of Eu2O3. For assay of 5 µg mL-1 of Eu2O3, 10 µg mL-1 of Fe3+ did not interfere.
Europium Spectrophotometry Interferences Jones reductor