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Acid Purification for ICP-MS


The increasingly lower limits of detection available with ICP and ICP-MS require ultra pure matrices. Sub-boiling acid safely allows you to prepare ultra pure acids right in your laboratory at a fraction of the cost of purchasing these regents. The distillation method of surface evaporation without boiling is employed through the use of heaters. Most metals can be reduced below parts per billion in a single distillation.

The PTFE sub-boiling acid still handles all common acids except sulfuric and can produce up to 50ml per hour of operation. Liquids and vapors come in contact with PTFE and PFA Teflon only to produce ultra pure acids.

Clean Acid, 1000mL capacity
(Purify acid to ULTRA PURE grade)
Evapoclean, purify up to 12 x 100mL acids
(Purify acid to ULTRA PURE grade)
Mini Vessel cleaner, all parts in contact with acid is made of Teflon.
Cleaning by acid vapors, heating is via a safety hotplate. No cooling is required.

Converts standard purity acids to ultra pure in your laboratory, usually paying for itself in the first year.

Typical performance:
H2O 1,8 Liters/day
HCl 1,1 Liters/day
HNO3 1,2 Liters/day
HF 1,0 Liter/day

With trace analysis ultra pure acids are more and more common in graphite furnace atomic absorption and in ICP-OES and ICP-MS techniques. With this acid purifying apparatus ultra pure acids can be produced out of standard qualities or pure water out of polluted water. Dirty acids can be cleaned several times. The sub- boiling consists of an IR-radiant heater and a PTFE vessel as steam chamber with PFA-cooler. The condensate will be led exclusively via PFA and stored in a translucent PFA-container.

The advantages are

  • Handles H2O and all acids except sulfuric acid, including, HCl, HNO3 and even HF.
  • No metal parts in the whole system, this eliminates corrosion and resulting contamination.
  • H2O and Acids are in contact exclusively with PTFE or PFA only.
  • Easy to use - just lift the container up to clean and refill.
  • Self regulating heating - infrared radiation through the wall of the acid container feeds just sufficient energy to the solution necessary to maintain the sub boiling temperature.
  • No complicated temperature regulators and adjustments.
  • Low maintenance - standard IR bulb to replace. Distinctive red light indicates system is operating.
  • Small foot print does not take up valuable lab space.

 

QUARTZ PURIFYING UNIT

Handles H20 and all acids except HF, including, HCl, HNO3 and even H2SO4

For an analytic decomposition substances are needed which have no numerical result in a blank test. In this case it is of advantage to distill the required acid fresh. Only thereby can any contamination by storage be avoided.