A micro co-precipitation technique for use in X-ray fluorescence analysis |
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Authors: | Kessler J E Vincent S M Riley J E |
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Institution: | Analytical Chemistry Research Department, Bell Laboratories, Murray Hill, New Jersey 07974, U.S.A. |
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Abstract: | An apparatus and a procedure are described for the preconcentration of nanogram amounts of trace elements. Co-precipitation and pressure filtration confine the precipitate to a 1.27 mm diameter spot on a filter membrane. Trace elements in the 10-100 ng range are collected reproducibly and detected with high sensitivity by X-ray fluorescence, by use of a milliprobe instrument. Advantages of the technique for quantitative applications are discussed. |
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