User Manual
12
Cleaning of Pellet Die Parts and KBr Pellet Removal
Intact from the Pellet Ring Holder
When the KBr pellet sample being held in the die ring holder (
6
) has
been analysed, the KBr sample must be removed from the die ring
holder (
6
) for pressing of a new sample into the same die ring holder.
To remove the KBr pellet, the entire KBr pellet and die ring holder (
6
)
assembly can be rinsed with cold or warm water to gradually dissolve
the KBr sample. When the KBr sample has been washed away from
inside the holder, the die ring holder (
6
) part can be further
washed/rinsed with methanol and then dried with tissues. Specac
would also then recommend that this part could be stored in dry
environment or placed on a heated surface (circa 30°C to 35°C) prior
to use for the next time.
After initial pressing of the pellet into the die ring holder (
6
) (from
sample preparation stage), the top anvil (
8
) and bottom anvil (
9
) should
also be rinsed with water, then methanol, dried with tissues and stored
on a heated top plate surface ready for next use.
However
, if you would wish to
save
the 7mm KBr pellet that has been
formed within the die ring holder (
6
) after it spectroscopic analysis,
then this KBr pellet can be removed intact from the die ring holder (
6
)
part, by use of the top anvil (
8
) with the longer plunger and the Perspex
die extractor cap piece (
10
).
Take the die ring holder (
6
) with KBr pellet and place the plunger of the
top anvil (
8
) into the aperture hole on one side of the die ring holder
(
6
). Place this combined assembly with the Perspex extractor cap (
10
)
in contact with other side of the die ring holder (
6
) into the Mini-Pellet
Press pressing area (
2
) as shown in Fig 8. Make sure that this
assembly of parts is placed centrally between the lead screw pressing
face (
12
) and the piston surface (
11
).
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