Maintenance
154
If you have been analyzing aqueous solutions, the torch glassware and injector tube
should be cleaned in an acid bath. An ultrasonic bath may be used. Start with a
solution of 5% nitric acid or aqua regia and, if deposits persist, increase the acid
concentration, up to 20% if necessary. Acid solutions must be used with care.
Observe all of the manufacturer's safety recommendations. These recommendations
are normally provided in a material safety data sheet (MSDS) supplied with the
chemical.
Use of hydrofluoric acid for cleaning the torch is
not
recommended.
If you have been analyzing organic solutions, the torch glassware and injector tube
can be cleaned using a solvent or diluted soap solution. Be sure to inspect the torch
and injector daily for carbon buildup. A muffle furnace can be used if necessary to
remove organic deposits on the torch or injector. Place the torch or injector in a
muffle furnace at 500
C to 550
C for several hours.
After cleaning the torch, dry it thoroughly using clean air or nitrogen. No moisture
should be present.
O-rings may be cleaned with soap and water. An ultrasonic bath may be used.
Replace if cracked or worn. A torch O-ring kit is available. See the list of
replacement parts later in this section.
Replacing the Torch
1. Loosen the knurled nut and firmly grasp the torch and push it slowly into the
torch mount. Rotate the torch so that the strip on the torch lines up with the index
Caution
The copper foil ignitor (Part No. N0781097) contact must be removed
from the torch glassware before it is cleaned in acid. Replace a new piece
of copper foil tape over the ignitor hole in the torch after the glass is clean
and dry.
Caution
To extend the life and aid in preventing devitrification of glassware, it is
necessary to remove all traces of alkali on glassware caused by handling it
with bare hands. To remove the alkali, wipe the glassware clean with
cotton wool dipped in alcohol.
Summary of Contents for OPTIMA 8000
Page 1: ...OPTIMA 8000 Customer Hardware and Service Guide ICP OPTICAL EMISSION Return to Document Menu...
Page 2: ......
Page 3: ...Optima 8000 Customer Hardware and Service Manual...
Page 12: ...Contents 10...
Page 18: ...16 Indicates the ON position of the main power switch Indicates alternating current...
Page 24: ...22 Figure C Location of warning labels in the sample compartment 1 2...
Page 28: ...26...
Page 29: ...Safety Practices 1...
Page 49: ...Preparing Your Laboratory 2...
Page 61: ...Preparing Your Laboratory 60...
Page 62: ...System Description 3...
Page 89: ...Installation 4...
Page 136: ...Maintenance 5...
Page 241: ...Troubleshooting 6...
Page 264: ...Error Messages 7...
Page 284: ......
