Supelco® Carbon Adsorbent Selection Guide
In addition to the tables below that list general guidelines, physical characteristics of Supelco® carbon adsorbents and adsorbent cross-reference, view the report A Tool for Selecting an Adsorbent for Thermal Desorption Applications, which highlights the relative differences among the most commonly used adsorbents with the help of color-coded performance charts.
General Guidelines for Choosing Supelco® Carbon Adsorbents
For multi-bed tubes, use the weaker adsorbent in front of the stronger adsorbent. For example, use Carbopack™ C adsorbent in front of Carbopack™ B adsorbent.
| Relative Analyte Size (1) | Recommended Materials (listed weakest to strongest) |
|---|---|
| C20 | Carbotrap® F, Carbopack™ F |
| C12-C20 | Carbotrap® C, Carbopack™ C, Carbotrap® Y, Carbopack™ Y |
| C5-C12 | Carbotrap® B, Carbopack™ B |
| C3-C9 | Carboxen® 1016, Carbotrap® X, Carbopack™ X, Carbopack™ Z |
| C2-C5 | Carboxen® 569, Carbosieve® G, Carboxen® 1000, Carbosieve® S-III, Carboxen® 1021, Carboxen® 1018, Carboxen® 1003, Carboxen® 1012 |
| (1) Analyte size relative to n-alkanes. Consider all atoms, not just carbon. For example, even though 1,2-dichloroethane is a C2, the two chlorine atoms give it a relative size between C4 and C5. | |
Physical Characteristics of Supelco® Carbon Adsorbents | ||||||
|---|---|---|---|---|---|---|
| sorbent | BET surface area1 (m2/g) | Density (g/mL) | Porosity (cc/g) | Micropore Diameter (Å) | ||
| micro- | meso- | macro- | ||||
| Carbotrap® graphitized carbon black (20/40 mesh ) | ||||||
| Carbotrap® F | 5 | 0.69 | - | - | - | - |
| Carbotrap® C | 10 | 0.68 | - | - | - | - |
| Carbotrap® Y | 24 | 0.45 | - | - | - | - |
| Carbotrap® B | 100 | 0.37 | - | - | - | - |
| Carbotrap® X | 240 | 0.43 | - | 0.62 | - | 100 |
| Carbopack™ graphitized carbon black (60/80 mesh) | ||||||
| Carbopack™ F | 5 | 0.64 | - | - | - | - |
| Carbopack™ C | 10 | 0.68 | - | - | - | - |
| Carbopack™ Y | 24 | 0.42 | - | - | - | - |
| Carbopack™ B | 100 | 0.35 | - | - | - | - |
| Carbopack™ Z | 220 | 0.18 | - | 1.73 | - | 255 |
| Carbopack™ X | 240 | 0.41 | - | 0.62 | - | 100 |
| Carbon Molecular Sieve | ||||||
| Carboxen®-1016 | 75 | 0.40 | - | 0.34 | - | - |
| Carboxen®-569 | 485 | 0.58 | 0.20 | 0.14 | 0.10 | 5 - 8 |
| Carboxen®- 10212 | 600 | 0.62 | 0.30 | - | - | 5 - 8 |
| Carboxen®-10182 | 675 | 0.60 | 0.35 | - | - | 6 - 8 |
| Carbosieve® S-III3 | 975 | 0.61 | 0.35 | 0.04 | - | 4 - 11 |
| Carboxen®-1003 | 1000 | 0.46 | 0.38 | 0.26 | 0.28 | 5 - 8 |
| Carbosieve® G | 1160 | - | 0.49 | 0.02 | - | 6 - 15 |
| Carboxen®-1000 | 1200 | 0.48 | 0.44 | 0.16 | 0.25 | 10 - 12 |
| Carboxen®-1012 | 1500 | 0.50 | - | 0.66 | - | 19 - 21 |
| 1 Brunauer, Emmett, Teller (BET) surface area calculations 2 microporous, monoporous carbon sieve 3 closed pore structure | ||||||
Adsorbent Cross Reference | |
|---|---|
| Adsorbent | Supelco® Equivalent or Substitute |
| Ambersorb® 347 | Carboxen® 564 |
| Anasorb C300 | Hopcalite |
| Anasorb CMS | Carboxen® 564, Carboxen® 1000, Carbosieve® S-III |
| Anasorb CSC | Coconut charcoal |
| Anasorb GCB1 | Carbopack™ B, Carbotrap® B |
| Anasorb GCB2 | Carbopack™ C, Carbotrap® C |
| Anasorb 708 | Chromosorb® 108 |
| Anasorb 727 | XAD-4 |
| Anasorb 747 | Carboxen® 564, Carboxen® 1000, Carbosieve® S-III |
| Carbograph 1 | Carbopack™ B, Carbotrap® B |
| Carbograph 2 | Carbopack™ C, Carbotrap® C |
| Carbosphere | Carboxen® 1000 |
| Graphpac-GC | Carbopack™ B, Carbotrap® B, Carbopack™ C Carbotrap® C |
| Hydrar | Hopcalite |
| Purosieve | Carboxen® 1000 |
| Spherocarb | Carboxen® 1000 |
| Tenax® GC | Tenax® TA |
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