Place Film; Secure Film; Fill Cup; Tamp Sample - Thermo Scientific XL2 User Manual

5
Common Operations
Soil Sample Prep

PLACE FILM

SECURE FILM

FILL CUP

TAMP SAMPLE

62 Niton XL2 Analyzer User's Guide
The container used to hold the sample will affect the accuracy of the measurement. Use a
container with as thin-walled a window as is convenient and use the same kind of container
and window for each sample. Consistency and careful attention to detail are keys to accurate
measurement.
Place a circle of polypropylene film on top of an XRF sample cup. This film goes on the end
of the cup with the indented ring. Thermo recommends preparing the cup ahead of time, if
possible.
Secure the film with the collar. The flange inside the collar faces down and snaps into the
indented ring of the cup. Inspect the installed film window for continuity and smooth, taut
appearance.
Set the cup on a flat surface film-window-side down. Fill it with at least five grams of the
prepared sample, making sure that no voids or uneven layers.
Lightly tamp the sample into the cup. The end of the pestle makes a convenient tamper.
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