Thermo Scientific NITON XL3t 500 User Manual page 61

Placing the Sample in an
XRF Sample Cup
PLACE FILM
SECURE FILM
FILL CUP
TAMP SAMPLE
PLACE FILTER
STUFF CUP
Thermo Scientific
Note The sample container should be a sample cup of a type that can be
filled from the rear; that is, the side opposite the window (e.g. Thermo
NITON Part Number 187-466). Thermo recommends using a 1/4 mil
Polypropelene film (e.g. Thermo NITON Part Number 187-461). A supply
of cups and films are included.
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 polypropelene 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.
Place a filter-paper disk on the sample after tamping it.
Fill the rest of the cup with polyester fiber stuffing to prevent sample
movement. Use aquarium filter or pillow filling as stuffing. A small supply
of stuffing comes with your bulk sample kit.
Cleaning Your Equipment:
NITON XL3 Analyzer User's Guide 1-47