SAX-functionalized silica provides a strongly basic, quaternary ammonium surface designed for efficient retention and separation of negatively charged analytes. The strong anion-exchange mechanism offers high selectivity, excellent reproducibility, and stable performance across a wide pH range, making it ideal for organic acids, nucleotides, and other anionic species.
| Name | Particle Sizes | Carbon Load | Pore Size |
|---|---|---|---|
| Adsorbosphere SAX | 3 – 10 µm | 8 % | 100 Å |
| Adsorbosphere XL SAX | 3 – 10 µm | 8 % | 100 Å |
| Allsphere SAX | 3 – 10 µm | 8 % | 100 Å |
| Equisil SAX | 5 µm | 5 % | 120 Å |
| Equisorb SAX | 3 – 10 µm | 8 % | 80 Å |
| Exsil 80 SAX | 5 – 10 µm | 80 Å | |
| Exsil 100 SAX | 5 – 10 µm | 100 Å | |
| Exsil Pure 120 SAX | 1.5 – 10 µm | 120 Å | |
| Exsil 300 SAX | 5 µm | 300 Å | |
| Exsil Avanti SAX | 5 µm | 130 Å | |
| Exsil Clasico SAX | 8 µm | 90 Å | |
| GromSil Anion | 5 µm | ||
| GromSil 80 SAX | 5 – 10 µm | 80 Å | |
| GromSil 100 SAX | 5 – 10 µm | 100 Å | |
| Macrosphere 300 SAX | 5 µm | 300 Å | |
| Platinum SAX | 3 – 5 µm | 100 Å | |
| ReproPart SAX | 10 µm | 10 % | 125 Å |
| ReproSil 80 SAX | 3 – 10 µm | 4 % | 80 Å |
| ReproSil 80 SAX-2 | 5 µm | 4 % | 80 Å |
| ReproSil 300 SAX | 5 µm | 300 Å | |
| ReproSil Saphir 100 SAX | 5 µm | 6 % | 100 Å |
| ReproSil Star SAX | 5 – 7 µm | 7 % | 200 Å |
| ReproSil Star SAX-2 | 5 µm | 7 % | 200 Å |
| ReproSil Star SAX-3 | 5 µm | 300 Å | |
| ReproSil-XR 120 SAX | 3 – 5 µm | 8 % | 120 Å |
| Reprospher 200 SAX | 3 – 50 µm | 7 % | 200 Å |
| Ultrasep ES SAX QCM | 7 µm | 100 Å | |
| Ultrasep ES SAX-W | 5 – 7 µm | 100 Å | |
| Ultrasep ES SAX-W33 | 5 µm | 100 Å | |
| Ultrasep SAX-2 | 5 µm |