Ultra-Trace Cleaning

Cleaning various accessories used in trace
analysis work is a critically important laboratory
routine. Traditional cleaning methods
require soaking items in hot acids, often for
several hours. While generally effective,
large volumes of acid are consumed and
need to be changed regularly. There is also
the risk of exposure to hot acids and acid
vapors.
Milestone’s new TraceCLEAN is an automated,
closed acid reflux system that thoroughly
and safely cleans trace work accessories.
Place the items to be cleaned in the
TraceCLEAN system, program the time and
temperature required, then press start.
Freshly distilled acid vapors (sub-boiling
pure grade) will then continuously reflux
within the sealed unit, thoroughly leaching
any metal contaminants from the items.
After the cleaning cycle is complete, the
items are cooled, dried and stored until
needed.
Various accessory holders are available for
vials, microwave digestion vessels, flasks,
glassware, and ICP/ICP-MS components.
The main benefit of this system is that any
trace metal contaminants that are present in
the cleaning acid stay within the reservoir
and do not come in contact with the cleaned
trace accessories.
Element |
TFM microwave vessel |
Quartz microwave vessel |
Microwave (ppt) |
TraceCLEAN (ppt) |
Microwave (ppt) |
TraceCLEAN (ppt) |
Al |
278±46 |
258±24 |
298±28 |
327±18 |
Fe |
<474 |
<474 |
<474 |
<474 |
Mg |
289±22 |
232±15 |
441±56 |
347±26 |
Na |
<121 |
<121 |
1190±350 |
608±66 |
Cu |
177±39 |
117±12 |
170±15 |
109±9 |
Cr |
<85 |
<85 |
176±56 |
<85 |
Zn |
995±80 |
<876 |
1640±1000 |
1005±124 |
The advantages of the TraceCLEAN
- Perfect for unattended cleaning of all TFM, PFA, glass, and quartz
ultra-trace accessories, including microwave digestion vessels and
ICP/ICP-MS accessories (torches, etc.).
- Only ultra-pure, subboiled acid vapors come in contact with the surface
of the items to be cleaned
- Clean components do not remain in contact with the cleaning acids
after the surface contamination is removed.
- Items are dried and cooled inside the TraceCLEAN assuring no airborne
contamination. No need for rinsing and drying.
- No operator exposure to acid vapors.
- Teflon racks and holders minimize handling of freshly cleaned items.
- Use preset programs or create and store your own.
- Automatic temperature control
- Built-in exhaust/cooling reduces exposure to acid vapors.
- PTFE-coated stainless steel compartment assures system durability and prevents use-to-use contamination.
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