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TE Instruments |
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Xplorer TN/NS |
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Modules | ||||
// Xplorer Xprep 3 | // Xplorer |
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Industrial |
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This module works with Xplorer |
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Effective Batch & Column method pre-treatment for AOX & TOX samples Trace Elemental Instruments XPREP 3 is a filtration unit designed to prepare samples for both batch (AOX) and column (TOX) method. After the filtration stage, the samples are introduced in an automated halogen analyzer. |
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How Does the Batch Method Work? | |||||
The AOX batch method is based on the adsorption of the organic halogens onto activated carbon. A mixture of 50 mg activated carbon and 100 ml water sample is shaken for at least one hour according to the DIN, ISO and CEN regulation. During this treatment stage, the activated carbon adsorbs the organic halogens. Gas pressure forces the water through the quartz frit, leaving only the active carbon behind. Inorganic chlorides are removed while rinsing with a nitrate wash solution. Once the pre-treatment is completed, the quartz frit with activated carbon is transferred into the AOX analyzer. |
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How Does the Column - or TOX - Method Work? | |||||
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XPREP System Specifications | ||
Dimensions (W x H x D) | 30 x 29 x 57cm (11.8 x 11.4 x 22.4 inch) | |
Weight | 18kg (39lbs) | |
Gas connectors | 1/8" and 1/16" Swagelok | |
Gases | Argon or Helium (carrier gas) | |
Primary pressure gas sample | up to 50 bar | |
Secondary samping pressure | 2 - 5 bar (29 - 72 psi); adjustable | |
Primary pressure liquefied gas | up to 25 bar | |
Secondary sampling pressure | automatically controlled | |
Evaporation Temperature | range ambient up to 75 °C | |
Sample loops | 10 mL gas; 100 μL liquefied gas |