Colonne chromatographique pastillable pour la determination d'elements traces par spectrometrie des rayons-x de fluorescence sur resine chelatante: Compressible chelating resin column for the determination of trace elements by x-ray fluorescence spectrometry
✍ Scribed by Frank Clanet; Roger Deloncle
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 479 KB
- Volume
- 117
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
Tours (France} (Rec;u le 26 novembre 1979) Summary. Compressible chelaiing resin column for the determbcaiion of trace elements by x-ray fluorescence spectrometry. Trace metals at clg I --I levels are preconcentrated on Cheles-100 (Dowes A-l) resin in a Makrolon cartridge_ The loaded cartridge is pressed to a pellet (125"C, 3500 bars), which serves as the target for x.r.f. spectrometry. Recoveries are quantitative; relative standard deviations for Cd, Hg, Pb and Zn are better than 6% The pellets can withstand many esposures and can be stored for further measurements. R&sum&. On prbente une mdthode de dosage de metaux (Zn. Cd. Hg et Pb) au niveau du pg 1.' par spectromdtrie-f.rr. aprk concentration sur r&sine Chelex-100 danr une cartouche en polycarbonate (hlakrolon). L'ensemble peut ensuite Ctre transformO en pastille, constituant ainsi la cible eramike aux rayons-x. Le rendement de la mCthode est de 100% et ie coefficient de variation des mesures f.r.x. n'excede pas 6%.