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Field Portable X-ray Fluorescence Analyzer
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Metorex X-MET 920-P and 940 Field Portable
X-ray Fluorescence Analyzers(6.24Mb)
Field Portable X-ray Fluorescence Analyzer
Metorex X-MET 920-P and 940
Abstract The
U.S. Environmental Protection Agency (EPA) conducted a demonstration of
field portable X-ray fluorescence (FPXRF) analyzers, in April 1995, at
the RV Hopkins site in Iowa and the ASARCO Tacoma Smelter in Washington.
The primary objectives of this demonstration were to determine how well
FPXRF analyzers perform in comparison to standard reference methods, to
identify the effects of sample matrix variations on the performance of
FPXRF, to determine the logistical and economic resources needed to operate
these analyzers, and to test and validate an SW-846 draft method for FPXRF
analysis. Two of the analyzers that were created by Metorex, the X-MET
920-P and 940, were used in this demonstration. The FPXRF analyzers were
designed to provide rapid, real-time analysis of metals concentrations
in soil samples. The X-MET 920-P and 940 analyzers provided definitive
level data for copper, arsenic, lead, and zinc. This demonstration found
that the X-MET 920-P and 940 analyzers were generally simple to operate
in the field, and the operator required no specialized experience or training.
Either analyzer can quickly distinguish contaminated areas from noncontaminated
areas, allowing investigation and remediation decisions to be made more
efficiently on-site which may reduce the number of samples that need to
be submitted for confirmatory analysis. The X-MET 920-P and 940 analyzers
were found to be effective tools for field-based analysis of metals contamination
in soil.
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Posted August 2, 1999
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