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Determination of Iron, Cobalt, Nickel, and Copper in Hafnium Fluoride by GF-AAS

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Abstract:

This paper describes an analytical method for the quantitation of iron, cobalt, nickel, and copper at trace levels with graphite furnace-atomic absorption spectrometry (GF-AAS) without the use of any matrix modifier or preconcentration techniques. A solution of HfF4 (10%, w/v) in HF (24%) was used for this study. The detection limits for iron, cobalt, nickel, and copper were found to be 3, 1, 3, and 2 ppb, respectively. The average precision of measurements (% RSD) for all the elements was <10%.

Keywords: Core-clad; Fork platform; Optical fibers; ZBLAN glass

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702934048217

Affiliations: 1: Optical Sciences Division, Code 6505, Naval Research Laboratory, Washington, D.C. 20375-5000; GEO-Centers, Inc., Fort Washington, Maryland 20744 2: Optical Sciences Division, Code 6505, Naval Research Laboratory, Washington, D.C. 20375-5000

Publication date: February 1, 1993

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