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Proceedings Paper

New low detection limits for EDXRF analyses on the basis of polycapillary optics and chemical sensors
Author(s): R. Kh. Khamizov; M. A. Kumakhov; S. V. Nikitina; V. A. Mikhin
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Paper Abstract

The possibilities of increasing the sensitivity of energy dispersive X-ray fluorescence analysis (EDXRF) of solutions with the use of special preconcentrating sensors are described in the article. The sensors are made from polycapillary tubes or plates consisting of hundred thousands micro-channels, each containing a micro-grain of collecting sorbent. The kinetic regularities for preconcentration of micro-components from solutions are considered. Experimental results are given for EDXRF analyses of different solutions containing metals and other elements in trace amounts, and the detection limits of tens and hundreds ppb are demonstrated. The pilot sample of a new analytical instrument <> is shortly described.

Paper Details

Date Published: 6 December 2006
PDF: 9 pages
Proc. SPIE 5943, X-ray and Neutron Capillary Optics II, 594310 (6 December 2006); doi: 10.1117/12.637999
Show Author Affiliations
R. Kh. Khamizov, Institute for Roentgen Optics (Russia)
M. A. Kumakhov, Unisantis SA (Switzerland)
S. V. Nikitina, Institute for Roentgen Optics (Russia)
V. A. Mikhin, Institute for Roentgen Optics (Russia)

Published in SPIE Proceedings Vol. 5943:
X-ray and Neutron Capillary Optics II
Muradin A. Kumakhov; Richard B. Hoover, Editor(s)

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