MICROWAVE SCIENCE FOR BETTER CHEMISTRY
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Ultra-Trace Cleaning

TraceCLEAN

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.