Katanax X-FLUXER, Руководство пользователя

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12. Upon heating, the sample reacts if an oxidizer is present. Then, the flux melts
and dissolves the sample. The mold is heated at the same time. At the end,
the door opens to let the crucibles out, and those are tilted to pour into the
molds. A blower cools the disks.
13. At the end of the cycle (when the cooling blowers turn off), carefully pick up
the glass disks. Do not tap the molds on a hard surface to remove the beads,
as it will warp the molds in the long run. You may use an identification sticker
to pull the bead from the mold. Important: Molds and beads may still be very
hot at the end of the cycle, depending on the mold weight and program
parameters.
Making
solutions
IMPORTANT: Before attempting to make solutions, it is important to remove
the mold holder fingers, which can otherwise interfere with the top of the
beakers.
IMPORTANT: Katanax does not recommend attempting to prepare solutions in
a fluxer not fitted with the optional solution magnetic stirrers.
When making a solution, the process is quite similar to making glass disks, but
the mold installation changes for the following:
9. Place beakers in instrument.
9.1 Completely remove the mold holder fingers by removing the screw and
spring at the front of each mold holder support bracket. (See page 57,
Mold holder removal for details.)
9.2 Fill PTFE beakers with about 100 ml suitable dilute acid. (10% nitric acid
is commonly used.)
9.3 Add one magnetic stirring bar in each beaker.
9.4 Press the “load beaker” button to swing the
platinumware holders backwards.
9.5 Put the beakers on the agitator, in their respective holes.
The magnetic agitation system is always active, so the
swirling motion should be taking place in the beakers.
9.6 Optionally, you can now press the “load beaker” button again, to move
the platinumware holders to the front.
A parameter in the pouring step can be toggled to indicate a “solution mode”. This
will automatically slide the holders in “load beaker” position immediately after
pouring, thus keeping the holders away from the vapors produced by the hot acid.
The fluxer beeps when the beakers are ready to be picked up.