Trace Element Analysis of Solutions at the PPB Level

Meltzer, Carl; King, Bi‐Shia

doi:10.1007/978-1-4615-3744-1_5

Cited by 4 publications

(2 citation statements)

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“…Therefore, XRF method for the analysis of the environmental water generally requires the preconcentration of the analytes through the sample pretreatments, such as dried spot method (Meltzer and King, 1991; Nakamura et al , 1988) ion exchange (Campbell et al , 1966), and precipitation by the chelating agent (Akagi et al , 1985; Abe et al , 2006). The dried spotted method is a rapid and simple method for correcting the trace metals in aqueous solutions on flat substrate or filter paper.…”

Section: Introductionmentioning

confidence: 99%

Preconcentration of environmental waters by agar for XRF analysis

2009

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We have developed a convenient and effective XRF analysis procedure for trace amount of K, Ca, V, Mn, Fe, Ni, Cu, Zn, Cd, and Pb in environmental waters by using a preconcentration using the natural polymer (agar). The thin agar film was prepared by drying a homogeneous agar gel after mixing the aqueous sample solution with the agar powder. XRF analysis of the preconcentrated thin agar films containing trace metals showed a good repeatability, because agar films were homogeneous enough. SB (signal to noise) ratios of the XRF intensity of the analytes were improved drastically. The linear calibration curves of K, Ca, V, Mn, Fe, Ni, Cu, Zn, Cd, and Pb showed a good linearity within the calibration ranges. The lower limits of detection (LLD) were 1.4 µg/mL for K, 0.26 µg/mL for Ca, 0.088 µg/mL for V, 0.029 µg/mL for Mn, 0.11 µg/mL for Fe, 0.016 µg/mL for Ni, 0.030 µg/mL for Cu, 0.017 µg/mL for Zn, 0.20 µg/mL for Cd, and 0.066 µg/mL for Pb, respectively. The proposed preconcentration method was applied to several environmental water samples. 96

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Section: Introductionmentioning

confidence: 99%

Preconcentration of environmental waters by agar for XRF analysis

2009

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“…Thus, the potential exists for radioactive solution to leak inside the instrument. The casting of solutions into dry residues for XRF analysis has been investigated by others for preconcentrating trace elements to improve the detection limits ͑Colletti and Havrilla, 1999; Meltzer and King, 1991;Murata et al, 1984;Nielson et al, 1997͒. A similar dried residue technique was developed here to eliminate the need to analyze radioactive solutions ͑Worley, 2002͑Worley, ,2003Worley and Colletti, 2004;Worley and Havrilla, 2001͒.…”

Section: Introductionmentioning

confidence: 99%

Optimization of a dried residue specimen preparation method for quantifying analytes in plutonium metal using WDXRF

Worley

Colletti

2007

Powder Diffr.

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A novel method for preparing thin films was investigated for quantifying gallium and iron in plutonium solutions using WDXRF. This technique was developed to eliminate the potential for radioactive liquid to leak into the spectrometer, decrease specimen preparation time, and minimize waste. Samples were cast in μL quantities onto Kapton, and a surfactant was added to disperse the solution uniformly across the Kapton. After drying the specimens, they were sealed in a cell for analysis. Results to date indicate the method can provide a relative precision of ∼0.5% for gallium and ∼2% for iron, which is more than sufficient for routine sample analyses.

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Development of on-line EDXRF to monitor actinide contaminated waste streams

Day

Vigil

1995

Journal of Radioanalytical and Nuclear Chemistry, Articles

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Trace Element Analysis of Solutions at the PPB Level

Cited by 4 publications

References 1 publication

Preconcentration of environmental waters by agar for XRF analysis

Preconcentration of environmental waters by agar for XRF analysis

Optimization of a dried residue specimen preparation method for quantifying analytes in plutonium metal using WDXRF

Development of on-line EDXRF to monitor actinide contaminated waste streams

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