Micromeritics Elzone II 5390 Operator's Manual page 70

Elzone II 5390 Confirm
Procedure
If possible, prepare your sample when you are ready to start the analysis. If you prepare
your sample in advance, be sure to place a lint-free cover over the beaker to prevent the
entry of air-borne particles.
1. Place approximately 0.2 gram of sample into a 25-mL beaker.
If your sample tends to agglomerate, add a few drops of surfactant. Mix until it
resembles paste.
2. Add 20 mL of electrolyte to the beaker.
3. Place the beaker in an ultrasonic bath for approximately 1-2 minutes.
If sample particles are fragile, do not use the ultrasonic bath; gently stir with a
spatula instead.
4. Clean the external glassware (orifice tube, electrode, and stirrer):
a. Fill a squeeze bottle with clean, filtered electrolyte or water.
b. Hold a beaker under the glassware and, using the squeeze bottle, thoroughly rinse
each piece of glassware.
5. Place the analysis beaker on the sample stand; position the electrode next to the
orifice tube so that it will be submerged in the beaker.
3-34
Preparing for an Analysis
539-42822-01 (Rev B) - Nov 2017